This telegram was sent from the Royal Netherlands Airways, Sydney, to the manager of ABC Radio Station 2CO, Corowa, New South Wales. This telegram relates to the 1934 London to Melbourne Air Race. The telegram records the Royal Netherlands Airways' thanks to ABC Radio 2CO radio staff for their efforts in broadcasting an emergency message to the residents of Albury after the Dutch airliner ‘Uiver’ became lost at night in bad weather. As requested local radio listeners drove their cars to the Albury racecourse and illuminated an emergency landing ground using their vehicle headlights. This allowed the lost airliner to land safely.This item relates to the London to Melbourne Air Race of 1934, a significant event that shaped Australia's history as it proved travelling to and from Australia could be done within a reasonable time by air, thereby making the country less isolated. Up to that time Australia was three weeks away from Europe by steam ship. The Air Race was dreamt up by the Lord Mayor of Melbourne, Harold Smith, to commemorate the centenary of Victoria's statehood and was sponsored by the Melbourne chocolate manufacturer Sir MacPherson Robertson. The Royal Netherlands Airways entered a Douglas DC2 plane 'Uiver' - the largest aircraft in the race, and the only one to carry passengers as well as crew, to show that a commercial passenger service to Australia was possible. But in the last leg of the race, the Uiver lost its way in an electrical storm over the Riverina town of Albury. Several communication methods were used to land the plane safely, including the signalling of the word "Albury" in Morse code using the town's street lights. Local ABC Radio station 2CO also made a call for locals to light up a makeshift landing strip for the plane at the town's racecourse. The plane landed safely and the next morning with the help of the townspeople who pulled it out of the mud, took off and finished the race in second place. The story of the Uiver points to the importance of communication in its various forms: two-way and broadcast radio, Morse, and light signals. The survival of the Uiver is a reflection of the ingenuity of Australian communications and the solutions that can be found through the sharing of ideas of information. The landing of the Uiver was an important moment in Albury's social history, as residents participated in the rescue of the plane and its passengers, helping the Uiver to continue on its journey and finish second in the Race. When the Uiver crashed in the Syrian Desert in December 1934, Albury residents contributed to a memorial which honoured those who were killed. Beige paper telegram printed with black ink and overwritten with typewriter. Telegram split into sections designating details of the telegram, details of the recipient and a space for the transmitted message. A small section of paper is missing from bottom left corner."Extend to you my warmest appreciation for your most valuable / assistance rendered to Netherlands machine by continuously keeping your / wireless organisation available during a period of extremely difficult / air navigation stop I assure you that in Holland and in Java your action / is most deeply appreciated Bakker chief representative in Australia for / Royal Netherlands airways. / 6 18pm"telegrams, telegraphic messages, communications, radio, uiver, royal netherlands airways, albury, london to melbourne air race, morse code

A telegraph or Morse key, sends a series of electrical signals down a telegraph line or via radio frequencies; the signals are interpreted as Morse code, a binary form of language constructed of 'dots and dashes', combinations of which correspond to letters of the alphabet. The motion of the key acts to complete an electrical circuit between the sender and receiver, producing a short pulse 'dot' or longer 'dash,' the space between the code indicates a broken current or wave.Device used to transmit telegraphic messages in Morse code through the manipulation of electric signals. The metal 'key' sits in a central bracket on which it moves up and down aided by a spring, controlled by an operator pushing the black Bakelite knob on the protruding end of the device. The motion presses the key onto a circular metal disc, completing the circuit and sending an electrical pulse to the receiver. The apparatus is secured to a wooden base with wires attached to the terminals; a cut out section of the base suggests wires may have entered through this area, attaching to a battery.Printed ink on base: "PMG"telegraph, telegraphist, morse code, mechanisation

The lamps were pioneered by the British Navy in the late nineteenth century and introduced by the Royal Australian Navy after 1918, and continue to be used to the present day. Manufactured in 1960, the Wilsons Promontory lamp was provided to the lighthouse by the Department of Shipping for signalling ships but was also used for communicating with Cliffy Island, 18 nautical miles away. This type of lamp was renowned for its brilliant light, and lightkeepers from the two lightstations ‘used to practice their signalling with each other, as its effective use was reliant on precise positioning of the scope which is located on top of the lamp’. The inside of the case is imprinted with ‘RAN (Royal Australian Navy), and details on the lamp include a serial number, the date of 1960 and the initials of the Department of Transport, which at that time incorporated the Commonwealth Lighthouse Service. Another Aldis lamp and case with a date of 1960 is held at Cape Nelson and third lamp and case is at Point Hicks; (date unconfirmed but possibly 1943). A fourth lamp and case formerly at Cape Schanck disappeared from the collection sometime between 1995 and 2003.Aldis lamp and case (WPLS 0003.2; likely provenance) The lamps are not rare in museum collections however the Wilsons Promontory example has a confirmed provenance to the lightation and has first level contributory significance as a fine example of the Aldis lamps that were distributed to lightstations throughout Victoria and Australia.1. Handheld black signaling lantern with trigger mechanism. Glass front with inner reflective disc. Black electrical cord is attached with a two pronged plug at the end. 2. Black painted wooden box for transporting lantern. brass catch, leather handle. Grey electrical cord inside plus transformer. Hinged lid. The Aldis lamp is portable, hand held visual signalling lamp with trigger mechanism and inner reflective disk used for optical communication via Morse code. The concave mirror is tilted to focus the light into pulse signals. Larger versions of the lamp are fixed on ships or pedestals and have shutters in front of the device that are opened and closed to transmit signals. Wilsons Promontory’s black metal Aldis lamp and attached electrical cord has a black painted wooden carrying case with metal clasp and leather hand grip.1. On trigger;"AP16413" Around V shaped protrusion attached to lamp "AP197873 / AEI .LTD 59" Beneath screw on face;"AD16415" Inside lamp, under glass;"ADMIRALTY PATTERN 16409 / 5 INCH HAND SIGNALING LANTERN SERIAL No. 212 Year 1960 / AEI PTY LTD SYDNEY" •2. Box. On brass plate below handle."ADMIRALTY PATTERN 16409 / BOX FOR TRANSPORTING LANTERN / PATTERN 16409" Inside box on side of metal insert attached to inside of box;"EXTRA LOW VOLTAGE TRANSFORMER / MADE BY / M.Brodribb, Melbourne/ cat & APP / No v/QR / 1811A / 50 / 60 va / CONT. 55 c / RATIO 240, 12 V TAPS " Top of metal box on sticker;"C of A / D.O.T 143076 / 12 V 5A" On Bakelite plug on metal box;"EXTRA LOW VOLTAGE"

The battery powered set, which dates from the second half of the twentieth century, comprises two main components, the electronic keyer with a single lever for tapping, and a transmitter (?), both connected by a keying cable. Morse code was invented in the 1830s by American, Samuel Finely Breese by using electrical signals to quickly transmit information over a long range. In the early 1890s Italian inventor, Guglielmo Marconi improved the technology to the point where it became an essential device used for commercial and government purposes. The first practical applications were demonstrated with maritime messaging, where this simple mode of communication was seen as a timely replacement for the historic practice of signaling by flags, lights and foghorns. Cape Schanck has an earlier Morse code key, which is original to the lightstation (CSLS 0035), and Cape Otway has another early example although its provenance to the lightstation has not been formally verified (COLS 0074). The Morse code set has first level contributory significance for its historical value as an earlier communications device that has since been made redundant by more sophisticated technologies.Morse code key set. Comprised of the tapping component and a metal box part with a white electrical cord.Yes

This portable, hand held visual signaling lamp, with trigger mechanism and inner reflective disk, was used for optical communication via Morse code, with the concave mirror tilted to focus the light into pulse signals. Larger versions of these lamps are fixed on ships or pedestals and have shutters in front of the light that are opened and closed to transmit signals. Smaller hand held versions like the Cape Nelson example have a concave mirror that is tilted to focus the light into pulse signals, and despite their size the lamps were renowned for their brilliant light. Invented by Arthur C W Aldis (1878‐1953) and pioneered by the British navy in the late nineteenth century, they continue to be used to the present day. Details on the Cape Nelson lamp include a serial number, a date of 1960 and the initials of the Department of Transport, which at that time incorporated the Commonwealth Lighthouse Service. Another lamp of the same date which is held at Wilsons Promontory was provided to the lighthouse by the Department of Shipping for signaling ships but was also used for communicating with Cliffy Island, 18 nautical miles away. Point Hicks also has an Aldis lamp and an associated case, which is painted an army green colour. A fourth lamp and case formerly at Cape Schanck disappeared from the collection sometime between 1995 and 2003. These types of lamps are not rare in museum collections.These types of lamps are not rare in museum collections however the Cape Nelson example has a reliable provenance to the lightstation and has first level contributory significance as a fine example of the Aldis lamps that were distributed to lightstations throughout Victoria and Australia.This object is comprised of a black metal encased Aldis lamp with electrical cord and associated wooden carrying case with metal clasp and red leather hand grip. yes

This portable, hand held visual signalling lamp was used for optical communication via Morse code. It comprises the metal encased Aldis lamp with electrical cord and its associated green-painted, hinged wooden carrying case, which has a metal clasp and leather hand grip. Larger versions of these lamps are fixed on ships or pedestals and have shutters on the front that are opened and closed to transmit signals. Smaller hand held versions like the Point Hicks example have a concave mirror that is tilted to focus the light into pulse signals via a trigger. The lamps were pioneered by the British navy in the late nineteenth century and continue to be used to the present day.317 Details on the Point Hicks lamp include a serial number and other information. Another Aldis lamp and case remaining at Cape Nelson Lightstation dates to 1960 and has the initials of the Department of Transport, which at that time incorporated the Commonwealth Lighthouse Service. Wilsons Promontory also has an Aldis lamp and case that dates from around the same year. A lamp formerly at Cape Schanck has disappeared. The Aldis lamp and associated case at Point Hicks has first level contributory significance for its historic values and provenance to the lightstation. PHLS0007.1 Hand held signal light. Painted metal trigger with attached black electrical leads with battery terminals at end. Inscriptions on metal of lantern. PHLS0007.2 Hinged lid, wooden box painted army green to house signal light. Metal plate with inscription on front of box.PHLS0007.1 "D^D / LANTERN PORTABLE SIGNALLING / ADMIRALITY No 5110D / SERIAL No 5482 YEAR 943 / AMALGAMATED WIRELESS / A ASA LTD / 9792-100" •PHLS0007.2 "20 K4 transporting lantern / admirality pattern no 91108"

A blue coloured cardboard cover with black information on the front. Near the top right corner reads Army Code No 70118. There are two punch holes and two rusted metal staples down the left hand side.british armed forces - service manuals, signal communications, security

This distress EPIRB unit (Emergency Position Indication Radio Beacon) was found on the beach at Levy's Point, Warrnambool, in December 2000 by a Warrnambool resident. Local police were alerted at the time. This distress signal unit is a world-wide COSPAS/SARSAT, satellite assisted, SAR (Search and Rescue) system for location of distress transmissions emitted by an EPIRB. Offshore cruising vessels must have such a unit as part of its essential safety equipment. This model EPIRB relies on four satellites with orbit times of approximately 100 minutes. Earlier units relied solely on aircraft flying overhead to detect and forward on the EPIRB’s location to Search And Rescue authorities, whereas this new system utilises satellites. An employee from the Lokata firm provided additional information about the Lokata EPIRB units. They had a machined aluminium case with labels that were also made on site. The units could be activated manually or automatically released when a magnetic switch in the case casing was activated. This later model, circa 1983, would have been mounted externally on a vessel's bulkhead in a spring-loaded, stainless-steel protective 'skeleton' mounting, The unit released when the water pressure sensor detected a set time it was under the water, in a similar way that life crafts were released. Each unit was registered to a particular vessel - the vessel's details on this unit are indecipherable. The Lokata Company was established in 1970, designing and manufacturing marine products including communications. The company no longer makes products with the “Lokata” brand. In 2001 Sartech Engineering Ltd. took over the support for the Lokata EPIRB beacons. This emergency location device is a late 20th century invention to help save lives at sea. It adds to the history of maritime life, its risks, the lives lost as sea, and the many inventions aimed as rescuing and saving lives. The local area is notorious for the number of lives lost through shipwreck. It also carries stories of heroic efforts to save lives, and other inventions to help reduce the chance of accidents at sea.EPIRB unit; “Emergency Position Indication Radio Beacon”. A distress communication unit for sending a distress location transmission in an emergency at sea. The EPIRB is a yellow, rectangular box with dials, buttons, indicator lights and instruction. An antenna protrudes from the top of the unit. The EPIRB unit sends a 406P (X) EPIRB, with 406M-Hz frequency, 48-hour duration signal. The maker was LOKATA Ltd in England. Remnants of a white label remain on the side. Circa 1980s."NAME OF VESSEL 'SERVICE IF SELF TEST FAILS' " “LO-KATA” moulded into the body. "406P (X) EPIRB" “Model 406” "Lokata Type No 92408" "UK Type approved to MPT 1278" "Class 2" "Made by Lokata Ltd, Falmouth Cornwall England TR10 8AE"" "LOKATE LTD. New North Road Hainault, Ilford Essex IG6 2UR" "ARMED / SAFE / TRANSMIT / CODE / DISPLAY / SET / wait / pass / fail / TEST" "IDENTIFIER / 1349:24034234N" [some characters may be different] "COUNTRY / DENMARK" "VESSEL IDENTITY / 124 [the rest is indecipherable]flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, emergency position indicating radio beacon, epirb, lokata ltd, marine safety equipment, satellite transmitting beacon, safety equipment, distress signal, life saving, safety at sea, shipwreck location, lo-kata, falmouth, emergency, beacon, radio signal, communication, marine equipment

Cards given to his (father) in N G / VX 81823 T.H. DRUMMOND..1) Cardboard box containing 52 playing cards and sheet of instructions black print on white paper, box red, yellow, blue, white and grey print of navy vessel. cards red yellow blue white and grey, naval vessel or cover, flags and pendants on back. .2) Sheet of paper with coloured international code and flag signals on one side and instructions for playing two games traditionally played in Navy.sticker " A gift from the Australian Red Cross Society" on box.cards, playing, leisure object

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

A blusish coloured cardboard cover with black information of the front. Top right hand side reads WO Code No. 9445. There are three punch holes down the left hand side. There is some water damage on the cover.australia - armed forces - service manuals, signal training, wireless signalling

This document is a reproduction of the page of the log book from the vessel HMS Euryalus, recording Nelson's famous signal at the Battle of Trafalgar. On October 21, 1805, Admiral Lord Nelson led the British Navy to victory against the French and Spanish navies in the Atlantic Ocean. The event became known as the Battle of Trafalgar. To commence the battle Nelson commanded his now-famous flag signal “England expects that every man will do his duty”. Nelson’s signal was transmitted from his ship HMS Victory in 12 separate flag-hoists, according to Sir Home Popham’s Telegraphic Code that had been supplied to the fleet as an experiment, with the numerical flags of the Admiralty official Day Signal book (1799 issue). The signal flags comprised eight that represented whole words and four that represented single letters - [ENGLAND] [EXPECTS] [THAT] [EVERY] [MAN] [WILL] [DO] [HIS] [D] [U] [T] [Y]. Nelson’s signal was received by the ‘reporting frigates’ who would then send them on to the other vessels. The signal was recorded by Captain Henry Blackwood who was in command of the HMS Euryalus. Captain Blackwood led a squadron of frigates, reporting back to Nelson on the movement of the French and Spanish fleets. Nelson’s famous signal was recorded in the log book of Euryalus and repeated to other vessels. The original log book is a canvas-backed manuscript written up from hour to hour during the battle. It is in the Nelson Collection at Lloyd's. Lloyd’s of London is a large insurance company in the United Kingdom. In 1803 Lloyd’s founded the Lloyd’s Patriotic Fund to honour the brave and provide for the wounded and dependents of those killed in major Napoleonic battles. Over the years Lloyd’s has accumulated an assorted collection of artefacts and memorabilia associated with Nelson, including this log book from HMS Euryalus. In 2003 Lloyds created a temporary exhibition to mark the bicentennial of Nelson’s Battle of Trafalgar. The display included key items from the Nelson Collection celebrating Nelson’s role in British Naval History. Lloyd’s now has a department called The Nelson Collection and Heritage Floor where historical artifacts are displayed and the story of Lloyd’s 300 years of history is told. This document, being a reproduction, is not significant in itself. However it's content is of historical significance for its connection to Admiral Nelson and The Battle of Trafalgar. Through the leadership and victory of Nelson, the British obtained the mastery of the seas over the French and Spanish and opened up the way for Britain to colonise many countries including Australia. The document is also associated with a wood sample from Napoleon's ship Victory that is in our Collection.Reproduction of a page of the log book of HMS Euryalus recording Nelson's famous signal at the Battle of Trafalgar. The original log book entry was handwritten, dated 21 Oct 1805.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, log book, flag signal, hms euryalus, nelson's famous signal, battle of trafalgar, october 21, 1805, admiral lord nelson, french and spanish navies, england expects that every man will do his duty, hms victory, sir home popham’s telegraphic code, admiralty official day signal book (1799 issue), reporting frigates, captain henry blackwood, canvas-backed manuscript, nelson collection at lloyd's, lloyd’s of london, lloyd’s patriotic fund, napoleonic battles, british naval history

The British Royal Navy’s warship HMS Victory was once Lord Nelson’s flagship. The HMS Victory was built in 1765 and after serving active duty is now, in 2019, still a ship of the Royal Navy, in dry dock undergoing continuous restoration to preserve her for display as a museum ship, due to the vessel’s significant naval history. Battle of Trafalgar: On October 21, 1805, twenty-seven British ships of the line, led by Admiral Lord Nelson aboard HMS Victory, defeated thirty-three French and Spanish ships of the line under French Admiral Villeneuve. The battle took place in the Atlantic Ocean off the southwest coast of Spain, just west of Cape Trafalgar, near the town of Los Caños de Meca. The victory confirmed the naval supremacy Britain had established during the course of the eighteenth century and it was achieved in part through Nelson's departure from the prevailing naval tactical orthodoxy of the day. Conventional practice at the time was for opposing fleets to engage each other in single parallel lines, in order to facilitate signalling and disengagement and to maximise fields of fire and target areas. Nelson instead arranged his ships into two columns to sail perpendicularly into the enemy fleet's line. During the battle, Nelson was shot by a French musketeer and he died shortly before the battle ended. Villeneuve was captured, along with his ship Bucentaure. He later attended Nelson's funeral while a captive on parole in Britain. Admiral Federico Gravina, the senior Spanish flag officer, escaped with the remnant of the fleet. He died five months later from wounds sustained during the battle. It was prior to this battle that Nelson had issued his now-famous final orders to his ships in 12 separate flag-hoists “England expects that every man will do his duty”. This wood sample is historically significant for its association with Admiral Lord Nelson the Battle of Trafalgar. Through Nelson’s leadership and unorthodox battle tactics, he secured not only a victory against the French and Spanish but reaffirmed Britain's naval supremacy opening the way for Britain to continuing the policy of colonisation of many countries including Australia.A coloured postcard of a sailing ship, warship or battleship, deck cannons on the ship and in the foreground, many signal flags flying from the masts. Printed on the front "H.M.S. Victory Flying Lord Nelson Famous Signal". The signal was given by Lord Nelson in 1805.Printed on the front "H.M.S. Victory / Flying Lord Nelson Famous Signal"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, post card, postcard, sailing ship, vice-admiral lord nelson, horatio nelson, lord nelson, oak piece, piece of oak, nelson, battle of trafalgar, maritime technology, ship relics, 18th century warship, british royal navy, sir home popham’s telegraphic code, admiralty official day signal book, october 21, 1805, admiral lord nelson, french and spanish navies, nelson's famous signal, england expects that every man will do his duty, hms victory, nelson collection at lloyd's, lloyd’s of london, lloyd’s patriotic fund, napoleonic battles, british naval history, 18th century warship, 18th century battleship

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

Training manual for signalling methods on various aspects of the codesignalling, morse code, ww1

Benjamin Thomas Roy Chadd No's 10594, VX20311, 1st and 2nd AIF. Refer 2039 for service history also 2034P. .1) Booklet, Aust Corps of Signals Vol 1 No 1 dated 1.2.1929 .2) Sig Order - Changes in Procedure WWII, 7 sheets 7 Aust Div .3) Training Memo Royal Signals, line & radio telephony .4) Training Memo Royal Signals, single call sign procedure .5) Training Memo Royal Signals, Army call sign book .6) R/T (radio telephone) Code Book.3) Has BTR Chadd signature top of front page .4) Has BTR Chadd signature top of front page .5) Has BTR Chadd signature top of front pagedocuments - booklets, books-technical, military history

Training manual used by the RegimentSoft covered stapled book detailing the principles of armoured communications and armoured wireless nets etcCode No 7014books, signal training, armoured corps

Hard covered book detailing Phonetic Alphabet, Morse and Semaphore Codes, Visual Instruments, Field Cables, Wireless Sets etc26 Manuals 1875manual, signals training

index, ill, p.105.non-fictionA history of communications systems on the NSW railways from morse code to microcircuit electronic communications from 1857 to 1987.railroad signalling - new south wales - history, railroad operations - new south wales - history