Showing 1005 items
matching navigational
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Queenscliffe Maritime Museum
Instrument - Compass
8 cm compass Pattern 9628 in wooden boxCompass Patt 9628S Delicate instrument handle with care 287A/62compass, navigation -
Queenscliffe Maritime Museum
Equipment - Brass Lantern
Prior to the launch of the motor powered Queenscliffe, three row boats were in service as lifeboats. This lantern was part of the equipment of the third lifeboat up to 1926.A brass lamp which was part of the safety equipment on board the Third Queenscliff LifeboatBrass Lantern with interchangeable port and starboard glass filters run of kerosene.Brandt Bros Melbourne Manufacturers 422 Elizabeth Streetlight, navigational safety -
Queenscliffe Maritime Museum
Instrument - Solar reflector
Various artifacts from the steamship 'Wattle'. The Steam Tug Wattle, a steel ship, was built as a harbor tug in 1933. Steam is supplied from a two-furnace Scotch Marine wet-back boiler which was originally fired with dewatered and filtered waste oil but has recently been converted to burn distillate for environmental and maintenance reasons. It was launched at Cockatoo Island on 27 June 1933 by Cockatoo Docks & Engineering Co. Ltd. (CODECO) on order from the Commonwealth Shipping Board. Now fully restored it operates excursions in Port Phillip and the Yarra.Solar Reflector with spirit level in wooden boxst wattle, navigational intruments -
Queenscliffe Maritime Museum
Equipment - Sounding lead line
Although the provenance cannot be confirmed it is believed that this lead possibly originated from the SS Time.Since at least the sixth century B.C. the sounding lead or sounding weight was in use in the Mediterranean area for maritime navigation. It is the oldest known marine navigational instrument and it remained a primary navigational aid in coastal waters and rivers well into the twentieth century.A sounding lead with rope line attached. One surviving leather fathom depth marker is spliced into the rope.sound lead, navigation -
Queenscliffe Maritime Museum
Map - Survey Chart, J. P. Larkin, Re-Survey of Queenscliff Channel, 29 October 1928
A paper chart showing sounding around the Queenscliff Channel dated 1928Victoria Port Phillip October 1928, Re survey of Queenscliff Channelqueenscliff channel, surveying, navigation -
Moorabbin Air Museum
Manual - Private Pilots Licence Courses, Private Pilot Course Navigation and Flight Planning
Study guide of navigation & flight planning for private pilot studentsSpiral bound manualnon-fictionStudy guide of navigation & flight planning for private pilot studentsaircraft navigation -
Moorabbin Air Museum
Book - Air Navigation, Air Navigation Royal Air Force
Text on the theory and practice of air navigation for RAF trainees, circa 1944Green hardback with frayed spine . Published 1944non-fictionText on the theory and practice of air navigation for RAF trainees, circa 1944 -
Moorabbin Air Museum
Book - Aviation Ground School Training - Cadet System, The Nes Cadet System of Ground School Training
Text for ground school cadets on navigation, meteorology, radio beam flying & orientation , circa 1930sManual style booknon-fictionText for ground school cadets on navigation, meteorology, radio beam flying & orientation , circa 1930snavigation, meterorology, radio beam fl, orientation circa 1930s -
Moorabbin Air Museum
Map (Item) - Maps of Northern Australia and New Guinea, AUS RNC 5 and 6 radio navigation maps
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Moorabbin Air Museum
Map - RAAF Navigational Maps
Historical Details: . Description: Official Wartime Maps NewGuinea, New Britain etc AAP Date: 1940-45 Author: RAAF Amended to AL Publisher: RAAF Pages: 15 Maps Binding: Content/Keywords. Level of Importance: -
Port Fairy Historical Society Museum and Archives
Functional object - Steam Whistle, c.1880
This steam whistle is part of the salvage of the wreck of the "S.S.Casino" It was given to the Tyler family because of their association with the ship.Large brass cylindrical steam whistle ('Casino')maritime technology, communications, belfast and koroit steam navigation company, signals, local history, s.s.casino, port fairy, ship, steamer, coastal steamer -
Port Fairy Historical Society Museum and Archives
Accessory - Arm Badge
Owned by Captain William Robertson, Captain of the "S.S.Casino" and Naval Reserve Officer in Port Fairya naval arm badge or patch: naval arm patch or badge with two embroidered crossed red flags with a red six pointed star abovelocal history, uniforms, navy, naval reserve, robertson, mr or captain william, belfast and koroit steam navigation company, naval insignia -
Port Fairy Historical Society Museum and Archives
Accessory - Hat Ribbons
Part of Captain William Robertson Collection who was an instructor/officer in the RoyalAaustralian Naval Reserve2 navy cap ribbons :- 1 with "HMAS Cerberus" and 1 with "Royal Australian Naval Reserve" printed on themHMAS Cerberus. Royal Australian Naval Reservelocal history, uniforms, navy, robertson, mr or captain william, port fairy naval reserve, s.s.casino, belfast and koroit steam navigation company, hat accessories -
Port Fairy Historical Society Museum and Archives
Weapon - Sword and Scabard, late 1800s
Associated with Captain William Robertson, Captain of the S.S.Casino, Port Fairy Naval Reserve,Naval Dress Sword and scabard: Naval Dress Sword with brass handle with safety catch and gold thread tassle. Scabard of leather with brass decorationsSword and Crown E.R.VII- Owen Harries 15 Russell Street Landportlocal history, arms, edged weapons, captain william robertson, s.s.casino, port fairy naval reserve, belfast and koroit steam navigation co., boxer rebellion -
Port Fairy Historical Society Museum and Archives
Equipment - Leather Lanyard, early 1900s
Used by Captain William RobertsonLeather Lanyard: Brown plaited leather lanyard with a brass swivellocal history, costume, male ceremonial, port fairy naval reserves, boxer rebellion, s.s.casino, belfast and koroit steam navigation co. -
Port Fairy Historical Society Museum and Archives
Decorative object - Model Ship, s.s.Casino, 2007
Scale model of S.S.Casino presented to the Port Fairy Historical Society on commemoration day 10 July 2007 by John CallenderScale model of S.S.Casino on wooden plinth, box with lid, brush and fixing screw"Casino" 1882-1932s.s.casino, model, b.k.s.n.co, belfast and koroit steam navigation company, port fairy -
Port Fairy Historical Society Museum and Archives
Functional object - Trolley
Trolley used to load cargo onto Belfast and Koroit Steamship Co. ships at the Port Fairy WharfThis trolley was used to load cargo onto many of the Belfast and Koroit Steam Navigation Company ships at the Port Fairy wharf.Wooden Cargo trolley with 4 braces and one curved handle longer than the other with heavy metal wheels and step No.50 on both uprightsshipping, coastal steamer, belfast and koroit steam navigation co., bkns, cargo, loading, casino, coramba -
Port Fairy Historical Society Museum and Archives
Photograph
The steamer S.S.CASINO was much loved by the whole Port Fairy community- with the possible exception of some of the fishermen whose boats she ran down! Transport of the large quantities of wool, potatoes, onions, grain, sheep, cattle and other produce grown on the rich lands of the Western District Belfast was served by a plethora of shipping, both sail and steam, but only one of the steamers then in the regular trade (S.S. DAWN) would ever be able to get up the river and reap the cost savings of loading against a wharf. It was not unusual for four steamers to be anchored in the bay at once and for seven or eight different steamers to call during a week. A number of inter-colonial steamers also called to pick up produce for delivery to Melbourne, Sydney and Adelaide. Production in the Western District was increasing and virtually all of that production had to go through one of the western ports in order to reach markets. By 1882 a meeting 15ft. March, 1882, in the office of auctioneer, J.B. HoIden in Cox Street took action and it was unanimously resolved - that the Belfast & Koroit Steamship Company be formed with a capital of £20,000 in 10,000 shares of £2 each". A number of steamers were offered by letter to the fledgling company, including the new and almost sister ships, CASINO and HELEN NICHOLL. The CASINO was on her delivery voyage from England was due to arrive in Warrnambool to load potatoes for Sydney and, initially, arrangements were made for her to call into Port Fairy for inspection by the BKNS Co directors. She eventually proceeded direct to Warrnambool and the Directors inspected her there. Without hesitation they purchased her even though they had to raise a large bank loan to do so. The CASINO arrived in Port Fairy on Saturday, 29th. July, 1882, steaming triumphantly up the Moyne River, and was greeted by crowds, many of whom had driven in from the surrounding countryside, which gave her “loud ringing English cheers". By 1884 the CASINO could not carry all the cargoes available to her and in December of that year the company purchased the new steamer BELLINGER to provide additional capacity. She helped to open up the intermediate ports of Lorne, Apollo Bay and Port Campbell, but the BELLINGER was not really suitable for the trade and she was sold in 1887, leaving the CASINO to operate alone -as she was to do for almost all of the next 45 years. The opening of the railway in 1890 decreased the cargo available to the steamers and the economic depression of the early 1890's worsened the situation. The weak soon began to fall by the wayside and when the Portland & Belfast SN Co. decided to go into liquidation in April 1895, the Belfast & Koroit Company bought the Portland Company's steamer DAWN on advantageous terms, a substantial part of the payment being in BKSN Co shares. The BKNS Co and the Howard Smith Line came into direct head to head competition and nearly forced the BKNS Co out of existence. Cargo dropped to such an extent that in 1899, they reached agreement that only one ship would run and that the ship which ran would pay a weekly amount to the competitor to stay out of the trade. This controlled service ceased in1909, and competition intensified when Howard Smith placed the newly built, larger steamer EUMERALLA on the run. The BKNS Co survived this competition and even prospered during it partly by extending on a more regular basis, the CASINO'S voyages to South Australian ports Port Macdonnell, Kingston, Beachport, Robe and, on occasions Adelaide. There were setbacks when, on 20 October 1924, CASINO went ashore at the Kennett River, near Apollo Bay, and again, in February l929, when she struck a submerged object at Warrnambool and had to be beached. The railways placed great competitive pressure on the small steamship company and this pressure was intensified when the Great Depression slashed the market for Western District produce, BKNS Co struggled on, paying dividends in most years, and the company planned a big celebration for the CASINO'S fiftieth anniversary in the trade on 29th July, 1932. Disaster struck soon after 9 o'clock on the morning of Sunday I0 July, 1932 when the CASINO was lost at Apollo Bay together with the lives of 10 crew members. Black and white photograph of s.s.Casino steaming down to berth at her wharf on the left fishing boats in foregroundship, boat, industry, belfast and koroit steam navigation company, moyne river, river, s.s.casino, wharf -
Port Fairy Historical Society Museum and Archives
Photograph, s.s.Casino
This photograph show the ship in dry dock (possibly Melbourne) for maintenance. The steamer S.S.CASINO was much loved by the whole Port Fairy community- with the possible exception of some of the fishermen whose boats she ran down! Transport of the large quantities of wool, potatoes, onions, grain, sheep, cattle and other produce grown on the rich lands of the Western District Belfast was served by a plethora of shipping, both sail and steam, but only one of the steamers then in the regular trade (S.S. DAWN) would ever be able to get up the river and reap the cost savings of loading against a wharf. It was not unusual for four steamers to be anchored in the bay at once and for seven or eight different steamers to call during a week. A number of inter-colonial steamers also called to pick up produce for delivery to Melbourne, Sydney and Adelaide. Production in the Western District was increasing and virtually all of that production had to go through one of the western ports in order to reach markets. By 1882 a meeting 15ft. March, 1882, in the office of auctioneer, J.B. HoIden in Cox Street took action and it was unanimously resolved - that the Belfast & Koroit Steamship Company be formed with a capital of £20,000 in 10,000 shares of £2 each". A number of steamers were offered by letter to the fledgling company, including the new and almost sister ships, CASINO and HELEN NICHOLL. The CASINO was on her delivery voyage from England was due to arrive in Warrnambool to load potatoes for Sydney and, initially, arrangements were made for her to call into Port Fairy for inspection by the BKNS Co directors. She eventually proceeded direct to Warrnambool and the Directors inspected her there. Without hesitation they purchased her even though they had to raise a large bank loan to do so. The CASINO arrived in Port Fairy on Saturday, 29th. July, 1882, steaming triumphantly up the Moyne River, and was greeted by crowds, many of whom had driven in from the surrounding countryside, which gave her “loud ringing English cheers". By 1884 the CASINO could not carry all the cargoes available to her and in December of that year the company purchased the new steamer BELLINGER to provide additional capacity. She helped to open up the intermediate ports of Lorne, Apollo Bay and Port Campbell, but the BELLINGER was not really suitable for the trade and she was sold in 1887, leaving the CASINO to operate alone -as she was to do for almost all of the next 45 years. The opening of the railway in 1890 decreased the cargo available to the steamers and the economic depression of the early 1890's worsened the situation. The weak soon began to fall by the wayside and when the Portland & Belfast SN Co. decided to go into liquidation in April 1895, the Belfast & Koroit Company bought the Portland Company's steamer DAWN on advantageous terms, a substantial part of the payment being in BKSN Co shares. The BKNS Co and the Howard Smith Line came into direct head to head competition and nearly forced the BKNS Co out of existence. Cargo dropped to such an extent that in 1899, they reached agreement that only one ship would run and that the ship which ran would pay a weekly amount to the competitor to stay out of the trade. This controlled service ceased in1909, and competition intensified when Howard Smith placed the newly built, larger steamer EUMERALLA on the run. The BKNS Co survived this competition and even prospered during it partly by extending on a more regular basis, the CASINO'S voyages to South Australian ports Port Macdonnell, Kingston, Beachport, Robe and, on occasions Adelaide. There were setbacks when, on 20 October 1924, CASINO went ashore at the Kennett River, near Apollo Bay, and again, in February l929, when she struck a submerged object at Warrnambool and had to be beached. The railways placed great competitive pressure on the small steamship company and this pressure was intensified when the Great Depression slashed the market for Western District produce, BKNS Co struggled on, paying dividends in most years, and the company planned a big celebration for the CASINO'S fiftieth anniversary in the trade on 29th July, 1932. Disaster struck soon after 9 o'clock on the morning of Sunday I0 July, 1932 when the CASINO was lost at Apollo Bay together with the lives of 10 crew members. Black and white photograph of ship in dry dockship, boat, sea, river, industry, belfast and koroit steam navigation company -
Port Fairy Historical Society Museum and Archives
Photograph - Photographic postcard, S.S.Casino in Moyne River 1905
This postcard features the S.S.Casino steaming into the Moyne river at Port Fairy after turning around in a "turning basin" situated further up the river it would then berth and disembark passengers and cargo onto the wharfPostcard featuring a photograph of S.S.Casino 1904 written on and stampedship, boat, sea, moyne river, s.s.casino, belfast and koroit steam navigation company -
Parks Victoria - Wilsons Promontory Lightstation
Objects, office
The items include a wooden ruler, masonite and metal clipboard, metal stapler and desk calendar holder made of metal, date from the 1970s. Three clear glass ink bottles and a black Bakelite fountain pen with screw on top are a little earlier in date, and all appear to have a reliable provenance to the lightstation. They have second level significance as small items of office equipment used in the day-to-day running of the lightstation. Maintaining the lightstation – equipment (themes 2, 3, 5) This sub-collection of workplace objects under the main theme of ‘Running the Lightstation’, includes the equipment used for and maintaining the lightstation. All have second level contributory significance for the insights they provide into the types of appliances needed to keep the lightstation running and functioning as a navigation aid.Metal clipboard, wooden ruler, metal stapler metal calendar /date holder. -
Parks Victoria - Cape Nelson Lightstation
Functional object - Flag set, navigational
The flags were used for communicating messages to passing ships. Knowledge of visual signaling was mandatory for all lightkeepers and all stations maintained a set of these flags. Although used for centuries, visual flag signaling formally developed in the nineteenth century and was published internationally as a system in 1857. By the early twentieth century it had developed into an effective means of conveying all kinds of short range visual messages.The Cape Nelson Lightstation is architecturally and scientifically (technologically) important as the most intact complex of lightstation buildings in Victoria. The octagonal signal station is a unique feature which is all the more important for its complete set of signal flags’. Cape Nelson Lightstation’s complete set of 41 alphabetic and numeric visual signaling flags (including substitute and answering pennants) are made of bunting, a coarse fabric of worsted (open yarn wool) in various colour combinations, and some of the fabric is hand sewn and bears inscriptions. Attachments include handmade wooden toggles, brass clips and hemp rope. -
Parks Victoria - Cape Nelson Lightstation
Functional object - Flags, semaphore
The two semaphore flags were used as a pair for visual signaling by hand. The semaphore system is an alphabet signaling system based on the waving of a pair of handheld flags in a particular pattern to compose words to be communicated to passing ships. The system was introduced by the Royal Navy in 1880 and was later adopted in Australia, with the first School of Signaling opening in Williamstown in 1890. The system was superseded in the 1970s by more sophisticated methods of communication. Information on the Cape Nelson flags indicates that they were made by Evan Evans P/L, Flag makers, 690 Elizabeth Street, Melbourne. Evan Evans (d.1927) started a tent‐making business in 1877 and by 1920 Evan Evans P/L maker of canvas goods, was located at 680 Elizabeth Street, Melbourne. In 1924 it acquired land at 632 Bourke Street and built a new factory. His son Ivor continued the business after 1927 and in 1938 opened a bulk store in Carlton.271 In 2016 the firm was located at 673 Spencer Street, Melbourne. Another pair of white semaphore flags made by Evan & Evans is held at Gabo Island, and Wilsons Promontory also has a pair. Cape Nelson’s white semaphore flags have second level contributory significance. They have historical importance as flags formerly used at the lightstation for visual signaling, a system that is now rarely used in navigation, and contribute to the importance of the lightstation’s large collection of flags.A pair of white flags made of white canvas/heavy cotton, the square flags are attached to dowel poles with staples. -
Parks Victoria - Cape Nelson Lightstation
Equipment - Flag clips
The items include one intact brass clip and sections of others. They were used for hoisting visual signalling flags and relate to the use of the forty‐one flags (CNLS 0004.41), which were used to convey messages to passing ships and which are included in the Victorian Heritage Register listing for the lightstation (VHR H1773) . They have second level contributory significance for their provenance to the lightstation and association with its set of navigational flags (CNLS 0004.41), which were a major part of the communications system formerly used at the lightstation.Twenty one flag clips, some are intact others partial. One intact brass clip. -
Parks Victoria - Gabo Island Lightstation
Light & object
Further information on the unidentified object has not been available during preparation of this report, but it may be a buoy light, or perhaps even a solar powered rotating light made by Pharos Marine, New Zealand. Portable beacon lights were made with a plastic lens and an aluminium base and it is known that one of these was installed in the Gabo Island Lighthouse in February 1992. It was replaced in May 2006 and the lights are now no longer used within the AMSA network. The unidentified item, which can be described as a white painted conical object, appears to be associated with signalling, but more information is needed to confirm this. These items of equipment are presumed to relate to core lightstation functions and look to be in good condition. They have at least second level significance for their probable provenance and association with the theme of visual signalling and the use of navigation equipment for maintaining safe routes for shipping.Beacon and unidentified object (GILS 0095) The portable beacon is a small rotating light containing a lens and prism. The other item can be described as a white painted conical object. -
Wodonga & District Historical Society Inc
Book - River of Islands, Kath & Leon Bentley, 1985
A detailed guide to the Murray RIver, including descriptions of the terrain and settlements along the river as well as detailed charts of the river from Yarrawonga to the Hume WeirAn A4 sized publication including text, photos and maps describing the history and surrounds of the Murray River from Yarrawonga to the Hume Weir.A detailed guide to the Murray RIver, including descriptions of the terrain and settlements along the river as well as detailed charts of the river from Yarrawonga to the Hume Weirmurray river navigation, murray river settlement, leisure activities - boating -
Wodonga & District Historical Society Inc
Book - Going My Way, Russell J Kelly, Going My Way - The story of the Mysterious Crash of a Beaufort Bomber, 2000
This book tracks the crash of the RAAF Beaufort, A9-228 which crashed in the mountains near Eskdale, Victoria and the search to locate the wreckage. On the night of 4 June 1945, just weeks before the end of World War 1, a Beaufort Bomber went missing whilst conducting a navigational exercise between Mount Gambier in South Australia and Sale in Victoria.The aircraft was meant to head east, but instead it headed north east due to a series of navigational errors. It flew over Albury, circled and then headed towards the Victorian Alps. It flew over the town of Eskdale in Northeast Victoria and crashed into the side of Mount Tawonga. All crew on board perished. Those lost were Flight Officer Don Flavel (pilot), Flight Officer Robert Clayton (navigator), Flight Officer Fred Wallis and Flight Sergeant L. J. Sims (radio operator). At the time of the crash, many members of the Eskdale community were in the public hall just beginning to watch a screening of the Bing Crosby movie, "Going My Way". This accounts for the title of the publication.A 62 page book outlining the loss of the Beaufort Bomber and the search to locate it. The book includes maps, illustrations and a bibliography. The cover features a map of the search area for the bomber.This book tracks the crash of the RAAF Beaufort, A9-228 which crashed in the mountains near Eskdale, Victoria and the search to locate the wreckage. On the night of 4 June 1945, just weeks before the end of World War 1, a Beaufort Bomber went missing whilst conducting a navigational exercise between Mount Gambier in South Australia and Sale in Victoria.The aircraft was meant to head east, but instead it headed north east due to a series of navigational errors. It flew over Albury, circled and then headed towards the Victorian Alps. It flew over the town of Eskdale in Northeast Victoria and crashed into the side of Mount Tawonga. All crew on board perished. Those lost were Flight Officer Don Flavel (pilot), Flight Officer Robert Clayton (navigator), Flight Officer Fred Wallis and Flight Sergeant L. J. Sims (radio operator). At the time of the crash, many members of the Eskdale community were in the public hall just beginning to watch a screening of the Bing Crosby movie, "Going My Way". This accounts for the title of the publication.beaufort bomber crash 1945, beaufort bomber eskdale, aircraft accidents victoria -
Moorabbin Air Museum
Book - Flight training for private pilots, Flying Training For The Private Pilot Licence Instrument Flying, Radio Navigation, Instrument Approach Procedure
Study guide on instrument flying, radio navigation & instrument approach procedure for private pilots circa 1980snon-fictionStudy guide on instrument flying, radio navigation & instrument approach procedure for private pilots circa 1980sflight traning for private pilots -
Mission to Seafarers Victoria
Painting, George Frederick Gregory (1821-1887), P&O S.S. Bangalore, 1867 - 1886
This ship was number 1 of 2 ships named Bangalore and run by P & O. This ship has listed the same tonnage as that on the inscription on the frame of this work. The ship was subsequently sold in 1886 sold to Hajee Cassum Joosub and used for passengers on pilgrimage into Jeddah. Another view of the history of the Bangalore is that to be found at the Maritime Museums of Sydney listing of another painting of the Bangalore which provides a somewhat different history. It is possible that the story of Bangalore 1 and Bangalore 2 have become conflated further research is needed to verify. see Links field. SS BANGALORE was built in 1867 by William Denny of Dumbarton. Owned by P&O, SS BANGALORE operated from Bombay and Galle to Melbourne and Sydney from 1872 to 1886 as a passenger and mail ship. In 1891 BANGALORE was sold to Wilh. Wilhelmsen, Norway and renamed SS CORINGA.Marine art, Maritime artP&O S.S. Bangalore by George Frederick Gregory (1821-1887)Thinly painted image on board featuring centrally a moored, at anchor, 19th C dual masted steamship with black funnel and flying at the stern a red ensign. To either side are conventional rigged clippers or sailing ships. Near the bow of the steamship there seems to be a tug or paddle steamer face on. In the foreground is a small rowing boat with boatman and two passengers, a male and a female. The painting on board is mounted in a large polished or varnished cedarwood frame with edge carving and a decorative pitted slip which holds in place a thin piece of glazing. Backing paper and seal has all been removed except for hanging wire. Central at front lower edge of frame is a small chipped wood plaque with inscription.Painted in black on plaque and coloured black: "P & O S.S. "BANGALORE" / 2342 tons Built 1867"s.s. bangalore, marine painting, sailing ships, 1867, william denny, artwork-paintings, peninsular and oriental steam navigation company, steamship, p&o, sandridge, port melbourne, hobson's bay, charles dickson gregory, centenary maritime exhibition, george frederick gregory (1821-1887), ss bangalore -
Flagstaff Hill Maritime Museum and Village
Planisphere, Early 20th Century
The word Planisphere (Latin planisphaerium) was originally used in the second century by Claudius Ptolemy to describe the representation of a spherical Earth by a map drawn in the plane. This usage continued into the Renaissance: for example Gerardus Mercator described his 1569 world map as a Planisphere. The word describes the representation of the star-filled celestial sphere on the plane. The first star chart to have the name "Planisphere" was made in 1624 by Jacob Bartsch. Bartsch was the son-in-law of Johannes Kepler, discoverer of Kepler's laws of planetary motion. A significant item of celestial mapping used by marine navigators This particular item was made and used in the first quarter to half of the 20th centuryPlanisphere of northern hemisphere, with canvas bag. Planisphere consists of a circular star chart attached at its centre to an opaque circular overlay that has a clear elliptical window or hole so that only a portion of the sky map will be visible in the window or hole area at any given time. The chart and overlay are mounted so that they are free to rotate about a common pivot point at their centres. The star chart contains the brightest stars, constellations and (possibly) deep-sky objects visible from a particular latitude on Earth. The night sky that one sees from the Earth depends on whether the observer is in the northern or southern hemispheres and the latitude. A Planisphere window is designed for a particular latitude and will be accurate enough for a certain band either side of that. Planisphere makers will usually offer them in a number of versions for different latitudes. Planispheres only show the stars visible from the observer's latitude; stars below the horizon are not included. A complete twenty-four-hour time cycle is marked on the rim of the overlay. A full twelve months of calendar dates are marked on the rim of the starchart. The window is marked to show the direction of the eastern and western horizons. The disc and overlay are adjusted so that the observer's local time of day on the overlay corresponds to that day's date on the star chart disc. The portion of the star chart visible in the window then represents (with a distortion because it is a flat surface representing a spherical volume) the distribution of stars in the sky at that moment for the Planispheres designed location. Users hold the Planisphere above their head with the eastern and western horizons correctly aligned to match the chart to actual star positions. "Made in Germany for GEORGE PHILIP & SONS Ltd. Geographical and Educational Depot, 32 Fleet Street, London" Canvas bag has "Capt. H (Howard) Tyler from Captain H. F. Woolf" "Tyler 22 ? St East Brighton" also "13 Halls St Flinders"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, planisphere, star map, marine navigation, maps, george philip & sons