Little has been written previously about this technical group of men and women and that their duties were under insurmountable difficulties which they faced and overcome in conditions that were encountered in the desert and jungle warfare. Without their constant and never ending services, the task of the force in bringing to a close this fight for freedom would have been greatly handicapped.An outline of the Australian Signals Corps over the years from the campaign in the Middle East to the present day of the victories in New Guinea. A tribute to the corps that stayed on duty every hour of every day providing and maintaining vital communication channels.Signals - Story of the Australian Corps of Signals. Green front and back hardcover with black text and insignia. Photographs, cartoons, illustrations and poems. The inside front and back covers have a photograph montage in green sepia.signal corps, wwii, c.h.simpson, motorcycle couriers, signals 7 australian division, lt.commander b.t.r chadd, palestine, spark plug, semiphore, morse code, field radio, a.i.f, british signals corps, pieter mersk, breconshire corp signals, new guinea, malaysa, singapore, switchboard, carrier pigeons, linesmen, gaza signal office

Taken in 1944, the photograph depicts the surrounding farmland from Mt. Stanley in Victoria. A secret experimental micro-wave radio station was established and tested at this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the ongoing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945. Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.1 /military album, army album, wwii, world war ii, army signal detachment unit, mt. stanley, beechworth, victoria, 1940s, australian army, melbourne, sydney, royal australian corps of signals

Taken in 1944, the photograph depicts the view of surrounding hills from Mt. Stanley. A secret experimental micro-wave radio station was established and tested at this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the ongoing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.2 / 32 /military album, army album, wwii, world war ii, army signal detachment unit, royal australian signal army corps, war, beechworth, victoria, mt. stanley

Taken in 1944, the photograph depicts the view from Mt. Stanley. A secret experimental micro-wave radio station was established and tested at this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the ongoing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.3 / 32 /military album, army album, beechworth, victoria, mt. stanley, australian army, wwii, world war ii, royal australian signal corps, army signal detachment unit

Taken in 1944, the photograph depicts the view from Mt. Stanley. A secret experimental micro-wave radio station was established and tested at this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the continuing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.4 / 32 /military album, army album, wwii, world war ii, mt stanley, beechworth, victoria, melbourne, sydney, royal australian corps of signals, army signal detachment unit, military, war

Taken in 1944, depicted are members of the Army Signal Detachment Unit with local residents at at Lake Kerferd. David Pittard (back row, right) is standing beside Dorrie Elliot. The other people are unidentified. A secret experimental micro-wave radio station was established and tested at this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the continuing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Sepia rectangular photograph printed on matte photographic paper.Reverse: BMM5095.5 / Relaxing with some of / the Stanley locals / David Pittard (back row Rt.) / next to Dorrie Elliot / I can't recall the others / Lake Sambell, I think / Kerferd /military album, army album, lake kerford, army signal detachment unit, royal australian corps of signals, military, war, wwii, world war ii, beechworth, victoria, sydney, melbourne

Taken in 1944, depicted are two unidentified soldiers presumed to be part of the Army Signal Detachment Unit. They are cooking a meal outdoors around Mt. Stanley. A secret experimental micro-wave radio station was established and tested near this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.6 / Our Cookhouse / 32 /military album, army album, military, war, wwii, world war ii, army signal detachment unit, royal australian corps of signals, mt stanley, beechworth, victoria, melbourne, sydney

Taken in 1944, the photograph depicts an Australian Army truck driving along an unsealed road from Stanley to the top of Mt. Stanley. A secret experimental micro-wave radio station was established and tested at Mt. Stanley by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the continuing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.7 / The track up (?) from / Stanley to the top / 32 /military album, army album, military, war, wwii, world war ii, army signal detachment unit, royal australian corps of signals, beechworth, victoria, stanley, mt stanley, melbourne, sydney

Taken in 1944, the photograph depicts two trucks and a trailer park at an undisclosed location inside the Stanley forest. An unidentified young man is standing in the background. There are also two tents installed on either side of the vehicles. A secret experimental micro-wave radio station was established and tested in Stanley, Victoria by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the continuing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.8 /military album, army album, wwii, world war ii, army signal detachment unit, royal australian corps of signals, ra sigs, stanley, army truck, victoria, beechworth, melbourne, sydney

Taken in 1944, the photograph depicts an Australian Army vehicle with a trailer driving through bushland in Victoria. A secret experimental micro-wave radio station was established and tested in Stanley, Victoria by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.9 / Our outfit (fully mobile) / on the move / 32 /military album, army album, wwii, world war ii, army signal detachment unit, royal australian corps of signals, ra sigs, australian army, army truck, beechworth, stanley, victoria, melbourne, sydney

Taken in 1944, the photograph depicts a van with two large, round satellite dishes installed on the roof stationed near Mt. Stanley, Victoria. There is a transmission tower in the background. Four unidentified young men are in the foreground on the right hand side. A secret experimental micro-wave radio station was established and tested at this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the continuing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.10 / Our station set-up / in operation beside / the old Fire Watchers / Tower / 32 / It was man-handled / the last 50m. to the top /military album, army album, wwii, world war ii, army signal detachment unit, royal australia corps of signals, military, war, australian army, mt. stanley, victoria, beechworth

Taken in 1944, depicted is an aerial view of an Australian military camp set up at Mt. Stanley in Victoria. There are two large tents along with a vehicle and trailer surrounded by bushland. A secret experimental micro-wave radio station was established and tested at this site by the Army Signal Detachment Unit during World War II. It was part of an experimental Ultra High Frequency (UHF) link between Melbourne and Sydney. At the time, it was highly classified. It intended to enquire into the hitherto unexplored transmission of micro-waves; that is, a radio signal which could only be transmitted by line of sight, and thus required hill-top to hill-top location.The photograph is historically significant as it pertains to World War II; the largest global conflict in history. This significance is enhanced by Australia's prominent involvement in campaigns across the Pacific, particularly on land in New Guinea and across the Huon Peninsula. It was also the first time that the Australian mainland came under direct attack by the Axis, with Japanese forces targeting north-west Australia and Sydney Harbour. These battles became Australia's largest and most complex offensives during the war. The record is also historically significant as it relates to the Royal Australian Corps of Signals, or "RA Sigs". This significance is strengthened by Australia's unique distinction of having the first established signal unit under the British Empire. This unit provides electronic warfare. They enable commanders to implement highly dynamic battle control against opposing forces by using a number of methods including radio, fibre optic, micro-wave, information systems and satellite links. The record has strong research potential. This is due to the ongoing scholarly and public interest in war, military history, the ANZAC legend, and the continuing existence of the RA Sigs. The historic context of this record can provide insight into Australia's history, military, technological innovation and advancements, as well as national economic, defence and foreign policies after 1945.Black and white rectangular photograph printed on matte photographic paper.Reverse: BMM5095.11 / Our camp / From the top. / (?) (?) /military album, army album, australian royal corps of signals, army signal detachment unit, mt. stanley, victoria, beechworth, wwii, world war ii, melbourne, sydney

Storyboard giving a summary of the background and explanation of the history of the Vietnam conflict by Bruce Davies MBE (Member of the Order of the British Empire). 1 RAR: Corporal, Signals Platoon 1965 - 1966, AATTV - WO2 Adviser ARVN Infantry Companies, 1 Corps and Platoon Commander Mike Force, Pleiku 1967 - 1968, AATTV WO2 Adviser ARVN Infantry Companies and Reconnaissance Company, 1 Corps and HQ AATTV Saigon, 1968 - 1970storyboard, behind the wire, bruce davies mbe, 1 rar, aattv, saigon

Robin Ellison was a signals Sergeant on HQ and Mick butler was an AFV crewman.Cambrai Day is celebrated annually by Armoured Corps regiments of the British Commonwealth. It marks the anniversary of the Battle of Cambrai in November 1917 when a force of more than 400 British Mark IV Tanks broke the defences of the German Hindenburg Line, It was the first large-scale, effective use of tanks in warfare. Cambrai turned from a battle of great success to failure, but it heralded a new type of warfare and changed the nature of the battlefield forever.The gathering at Buna Barracks Albury, Beersheba Barracks Wangaratta, Bapaume Barracks Benalla and Salamaua Barracks Cobram on 30 November 1986 was the inaugural meeting of the 8th/13th Victorian Mounted Rifles Regimental Association.Colour photograph of Sergeant Robin Ellison and lance Corporal Mick Butler taken at Buna Barracks Albury at a Cambrai Day gathering of former members of 8/13 Victorian Mounted Rifles, 30 November 1986.

The Heliograph MkV is a fascinating piece of historical surveying and communications equipment. It was primarily used for visual signaling by reflecting sunlight with a mirror to send coded messages over long distances. This method was primarily useful in remote areas where other forms of communication were not available. The MkV model, specifically, was widely used by the British Army and other military forces from around 1906 until the mid 1960s. It remained in use with the Australian Army Survey Corps until the mid 1980s. The device typically included a 5 - inch mirror and was often mounted on a tripod for stability. Initially the instrument was used to communicate between survey stations using Morse code to coordinate their activities. Later when better forms of communication were available they were used for precise angle alignment where the sunlight reflection from the mirror was targeted between the survey stations to give very accurate results. The MkV was relatively light weight and portable, making it ideal for use in the field. It could be setup and adjusted quickly. The heliograph had an adjustable mirror that could be tilted to reflect sunlight towards a distant receiver. Surveyors could align the mirror using a sighting device. Whilst it was primarily used by the Military it was also used in civil surveying particularly in the remote areas of Australia. This instrument was used as a training aid to help teach surveyors at the Royal Australian Survey Corps School of Military Survey. Catalog item No 2009 is a tripod that was used to mount the Heliograph whilst being used for surveying.A Heliograph containing two mirrors with brass surrounds mounted on a wooden board as a Training Aid. Item has additional parts attached to the base board."Heliograph Mk V Training Aid"royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr

00503.1 Royal Marines 00503.2 Royal Marines 00503.3 Australian Medical Corp collar badge 00503.4 Signal Corps 503.5 British General Service Badge

This booklet was donated by Pte Lindsay Arnold Burton 3786890 who served in the Australian Army. Pte Buton a National Service soldier. He served with the Royal Australian Infantry Corps. Pte Lindsay was in Vietnan with 1 Australian Reinforcement Unit from Jan 67 to Feb 67, 6th Battalion, The Royal Australian Regiment from Feb 67 to May 67 and 2nd Battalion, the Royal Australian Regiment from May 67 to Aug 67.A brwon coloured cardboard cover with black information on the front. Near the top right corner reads WO Code No: 9031. There are three punch holes down the left hand side and two metal staples down the spine of the booklet.british army, signal training, morse telegraphy, pte lindsay arnold burton, 3786890, australian national serviceman, royal australian infantry corps, 1 australian reinforcement unit, 6th battalion, 2nd battalion, the royal australian regiment

The Heliograph MkV is a fascinating piece of historical surveying and communications equipment. It was primarily used for visual signaling by reflecting sunlight with a mirror to send coded messages over long distances. This method was primarily useful in remote areas where other forms of communication were not available. The MkV model, specifically, was widely used by the British Army and other military forces from around 1906 until the mid 1960s. It remained in use with the Australian Army Survey Corps until the mid 1980s. The device typically included a 5 - inch mirror and was often mounted on a tripod for stability. Initially the instrument was used to communicate between survey stations using Morse code to coordinate their activities. Later when better forms of communication were available, they were used for precise angle alignment where the sunlight reflection from the mirror was targeted between the survey stations to give very accurate results. The MkV was relatively light weight and portable, making it ideal for use in the field. It could be setup and adjusted quickly. The heliograph had an adjustable mirror that could be tilted to reflect sunlight towards a distant receiver. Surveyors could align the mirror using a sighting device. Whilst it was primarily used by the Military it was also used in civil surveying particularly in the remote areas of Australia. The British Army Mark V version uses a flat round mirror with a small unsilvered spot in the centre. The sender aligned the heliograph to the target by looking at the reflected target in the mirror and moving their head until the target was hidden by the unsilvered spot. Keeping their head still, they then adjusted the aiming rod so its cross wires bisected the target, they then turned up the sighting vane, which covered the cross wires with a diagram of a cross, and aligned the mirror with the tangent and elevation screws, so the small shadow that was a reflection of the unsilvered spot hole was on the cross target. This indicated that the sunbeam was pointing at the target. If the sun was in front of the sender, its rays were reflected directly from this mirror to the receiving station. If the sun was behind the sender, the sighting rod was replaced by a second mirror, to capture the sunlight and direct it onto the main mirror to reflect it to the receiving station.. 1 Brish Army "Mance" Mk V A253 Heliograph has two 125mm diameter mirrors on a brass arm with targeting attachments. The Instrument is mounted on a three-legged tripod of brass and mahogany with spiked feet, approximately 1.2 metres high. The instrument was made by LUCO Art Metal Co Ltd, London in 1940. .2 A military green metal carrying safety storage case with khaki shoulder strap.A253 stamped on instrumentroyal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr

00079.1 Royal Engineers Hat Badge Kings Crown George V1 00079.2 Royal Army Ordnance Corps Kings Crown Hat Badge 00079.3 Royal Corps of Signals Kings Crown Hat Badge