Compass, divider, and caliper are basically instruments that have two legs pivoted to each other at the top and are concerned with small-distance measurement or transfer. The compass and divider have straight legs; the caliper has curved legs. Dividers and Calipers were known to both the Greeks and Romans, though the caliper was uncommon. A divider with a circular sector, or wing, connecting the two legs was sketched in 1245, its modern counterpart is the wing divider with a thumbscrew clamp and screw for fine adjustment. Or the marine dividers used to measure the distance a vessel has travelled by transferring the vessels distance from a map with the divider and transferring that measurement to a marine ruler to mathematical calculate the distance.Item is believed to be a replica/ copy of a 19th century map calipers used in marine navigation to determine distance travelled. Item was probably purchased between 1972-1975 to add to the marine displays at Flagstaff Hill.Stainless steel dividers used in navigation charts. Top half is alloy plated. "W & HC" and "Made in England".flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, stainless steel dividers, steel dividers, dividers

Navigation Chart - Plans in Tasmania - Foster Inlet, River Mersey and Emu Baywarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, river mersey, foster inlet, emu bay, navigation chart

British Admiralty Navigation Chart - Japan, Fukuoka Wan - Kyushu - North Coastwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty, navigation chart

British Admiralty Navigation Chart - Africa, North Coast - Ras Makhabez to Bengaziwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, ras makhabez to bengazi, british admiralty navigation chart, navigation chart

British Admiralty Navigation Chart - Jamaica and the Pedro Bank with part of Cuba and Haitiwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, pedro bank, jamaica

British Admiralty Navigation Chart - Jamaica and the Pedro Bank with parts of Cuba and Haitiwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, pedro bank, jamaica

British Admiralty Navigation Chart - South Pacific Ocean - Melbourne to Cape Hornwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, melbourne to cape horn, south pacific ocean

British Admiralty Navigation Chart - China Sea, Southern Portion - Eastern Sheetwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, china sea

British Admiralty Navigation Chart - Harbours and Anchorages in the Hawaiian Islands or Sandwich Islandswarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, hawaiian islands

British Admiralty Navigation Chart - Korea - West Coast - A San Anchorage and Approacheswarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, a san anchorage and approaches

Admiralty Manual of Navigation Vol 2 Publisher: Her Majestys Stationery Office warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, book, admiralty manual of navigation vol 2

The 41 alphabetic and numeric visual signalling flags (including substitute and answering pennants) have either square or pointed ends. They are made of bunting, a coarse fabric of worsted (open yarn wool) in various colour combinations. Some of the flags are marked with inscriptions, for example “B”. Attachments to the flags include hemp rope and metal clips. Each flag has its own galvanised canister and lid, each of which is painted grey and marked with a letter, number or word. The flags were used for communicating messages to passing ships. Knowledge of visual signalling was mandatory for all lightkeepers and all lightstations maintained a set of flags. Although used for centuries, visual flag signalling 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 signal flags and canisters at Gabo Island form a complete set and are not historically linked to the lightstation and their provenance is unknown. It is known however that they originate from a lightstation in Victoria and for some years were on loan from AMSA to the Queenscliff Maritime Museum, where they were held in storage and not displayed. Three of the six lightstations that Parks Victoria manages have sets of signal flags in their collections. Forty navigational signal alphabet flags & numeral pennants. Flags are made of wool.

This technical textbook is the nineteenth edition of the book by Henry Raper, Lieutenant in the Royal Navy with awards that include F.R.A.S. (Fellow of the Royal Astronomical Society) and F.R.G.S. (Friend of the Royal Geographical Society). The book is dedicated in honour of Rear-Admiral Sir Francis Beaufort K.C.B., Hydrographer to the Admiralty. He was awarded the title K.C.B. (King's Commander) as a Member of the Order of Bath, an order of British Chivalry, The book was first published in 1840 and soon became a resource for navigation students. It includes topics on nautical navigation, astronomy, navigation charts, calculations and mathematical tables, time, tides, ships, longitude, and position at sea. Thomas A. Hull, who revised and expanded this edition, was a Commander in the Royal Navy and had previously been Superintendent of Admiralty Charts used for navigation worldwide by seamen from many walks of life. The publisher, J D Potter of London, was at that time the sole agent for the Admiralty Charts produced by the Royal Navy. Printer Spottswoode and Co.,. was established by William Strachan in 1738. In 1819 his nephews A and R Spottswoode took over the business and bought premises in New-Street Square and Shoe Lane. In 1850 over 200 workers were employed by the firm. and five years later the business became Spottswoode & Co. Andrew Spottswoode invented the Spottswoode Press.This technical book was very popular as a textbook for students of maritime navigation, written and updated by members of the British Royal Navy and relied upon for accurate advice and information. The first edition was published in 1840, this edition was updated, expanded and published in 1891 when ports around the world were filling with travellers, merchants and business people. Title: The Practice of Navigation and Nautical Astronomy Author: Henry Raper, Lieut, R.N., F.R.A.S., F.R.G.S. Nineteenth Edition, revised and enlarged by Commander Thomas A. Hull, R.N., Late Superintendant of Admiralty Charts Dedication: To Rear-Admiral Sir Francis Beaufort K.C.B. Publisher: J D Potter, London, sole agent for the sale of Admiralty Charts Printer: Spottswoode and Co. New-Street Square, London Date: 1891 Small leather hardcover book with gold embossed text and lines on the spine. The Dedication in the book is as follows: - "To Rear-Admiral Sir Francis Beaufort K.C.B. Hydrographer to the Admiralty. Sir, The eminent station which you occupy in the naval scientific world renders it highly gratifying to me to dedicate the following Work to you as a testimony of my regard and esteem; while the general accordance of my views on the subject with those of your more experienced judgement, gives me the greater confidence in laying my labours before the Public. I have the honour to be, Sir, Your obedient servant, HENRY RAPER"flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill, warrnambool, flagstaff hill maritime village, book, navigation, nautical astronomy, hydrography, nautical charts, nautical navigation, astronomical navigation, admiralty charts, henry raper, thomas a. hull, royal navy, j d potter, royal astronomical society, royal geographical society, calculations, mathematical tables, longitude, latitude, nautical time, location at sea, position at sea, maritime, practical navigation, spottswoode and co., sir francis beaufort, k.c.b., rear-admiral sir francis beaufort, hydrographer to the admiralty, scientific book, naval science

British Admiralty Navigation Chart - England - South Coast - Dungeness to the Thames and the Dover Straitwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, dungeness to the thames, dover strait

British Admiralty Navigation Chart - Luzon Island : North of Latitude 16º 20' Northwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, luzon island

British Admiralty Navigation Chart - Bay of Bexgal - East Coast - Bruma - Tavoy Riverwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, tavoy river, bay of bexgal, bruma

Slide Rule type navigation computer. Stainless steel/plastic. Uses dead reckoningRAAF Indent no. G6B/2087 Serial no. WG/442royal australian air force, navigation

Large USAF jet Navigation chart. Scale 1:2,000,000 of South China Seamap, navigation chart

The Marine Safety Act, Victoria requires that lights must be displayed from sunset to sunrise and in times of restricted visibility during daylight hours. A vessel's lights should indicate: what type of vessel it is, what the vessel is doing, the direction that the vessel is travelling in. E.G. For vessels under 50 m in length, a second masthead light is optional. For vessels under 12 m in length, sidelights may be a combined lantern on fore and aft centreline. Every vessel at sea must show light to indicate type of vessel, directionof travel and speed.Three metal navigational lights; red port, green starboad and clear head light. S/N Side Light (red) Elect. S/N 432 Side Light (Green) Elect. S/N 433 Head Light Elect.navigation light, marine safety, navigation, safety equipment

A talking book player that allowed the user to change the tone and speed of cassettes played in it. Designed to handle both 4 track and 2 track cassettes, these players were the perfect solution to having both commercial (2 track) and recordings for the blind (4 track) materials without needing separate players. Tonal changes in particular were sometimes required by older listeners, as aging reduces the ability to distinguish high pitch sounds. Speed variability also allowed those who read faster to increase narration, and to slow down reading patterns for listeners with acquired brain injury or other conditions that affected cognitive processing of language.Blue plastic rectangular talking book player with buttons for navigational controls and 5 buttons.Model tbci serial no 8017. Machine number: 8157audio equipment, royal victorian institute for the blind

British Admiralty Navigation Chart - Yellow Sea - Korea East Coast - Approaches to Chemulpho Anchoragewarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, approaches to chemulpho anchorage, korea

British Admiralty Navigation Chart - England - South Coast - Owers to Christchurch with Spithead and the Isle of Wightwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, owers to christchurch

British Admiralty Navigation Chart - Australia, Victoria -Entrance to Port Phillip including the Banks and Channels.warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, entrance to port phillip

British Admiralty Navigation Chart - Africa - North East Coast - Ras Kòrai to Ras Hafunwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, ras kòrai to ras hafun, gulf of aden, africa : north east coast

Admiralty Navigation Manual Vol 1 Publisher: His Majestys Stationery Office Date: 1938Pastedown front endpaper has a the name C. H. Noble, H.M.S. Conway hand writtenwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, great ocean road, book, warrnambool library, warrnambool mechanics’ institute, mechanics’ institute library, victorian library board, warrnambool books and records, warrnambool children’s library, warrnambool public library, admiralty navigation manual vol 1, admiralty

British Admiralty Navigation Chart - North East Pacific - Cape Cprrientes, Mexico to Kodiak Islandwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, cape cprrientes,, mexico, kodiak island

British Admiralty Navigation Chart - Plan of Anchorages between Borneo and New Guinea with Kayeli Baywarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty