George Lee Lawrence (1901–1976) established a firm in Chicago to make slide rules for photography. In 1935 he moved to Wabash, Ind., renamed the company Lawrence Engineering Service, and began to manufacture general purpose slide rules. In 1938 he relocated once more to Peru, Ind., and in 1947 it was changed to Engineering Instruments, Inc., and the company remained in business until its building burned down in 1967. The model 10-B sold for 25 cents during this period. There is no record that Lawrence ever received a patent for any aspect of his design or manufacturing process.Used up to the 1960s prior to the invention of the electronic calculator.10 inch one-sided wooden slide rule painted white on the front face, which consists of two divided scales, one fixed and on movable, and a sliding window called a cursor. A, D, and K scales are on the base, and B, CI, and C scales the inside of the slide. The underside of the rule is marked with: tables for equivalents and conversions. Housed in cardboard box with instruction booklet.The top of the base is marked: MADE IN U.S.A. It is also marked ENGINEERING INSTRUMENTS, INC., PERU, INDIANA and PAT. PEND. Underside: This Famous Slide Rule... at a popular price. Solves Problems in Multiplication, Division, Proportion, Squares Roots, Cubes and Cube Roots, Reciprocals, etc., Instantly. Accurately Calibrated White Face on Well Seasoned Hardwood. Both ends of box: MODEL 10B-BK Price of 15 shillings handwritten on box.slide rule, mathematics

The slide rule was used for less accurate quick mathematical calculations. It was light weight and easy to use in the field. This slide rule was used by members of 4 Fd Svy Sqn circa 1960 for quick Survey calculations..1 12 Inch Slide Rule, multi-function Calculator .2 Protective box and carry case for Slide Rule. Green cardboard box.royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr, 4 fd svy sqn

A slide rule is an instrument which is used to carry out mathematical calculations. William Oughtred is credited with its invention in 1621, however many others including Isaac Newton have made improvements or modifications over the years. From 1625 to 1800 there were approximately 40 different styles brought forward. with the following 100 years sees over 250 designs created.There have been different versions and modifications to suit scientific, mathematical and engineering requirements. It is interesting to note that many of the buildings of the 19th and 20th centuries have been designed with the use of slide rules. Their use has declined in the last 25-30 years with the advent of computers and specialist calculators.While not directly linked in any way to the history of Warrnambool, this slide rule would have been a item in use by students doing maths at upper secondary level as well as other applications which would make it a familiar object to many people.Coated bamboo with sliding metal framed glass panel or cursor . The bamboo is in three sections with the middle section movable. It is marked in various graduated measurements mainly in dark blue but with some in green and red.It is inside a dark grey rectangular box with a slide off lid on one end.There is a celluloid panel on the back with a conversion table printed on it. There is an accompanying 67 page manual with a pale green cover with black text. On slide rule:Sun Hemmi Japan No 2664S On box: Sun Hemmi Japan No 2664S warrnambool, hemmi slide rule, bamboo slide rule

Faber Castel slide rule and instruction bookslide rule

Sextant belonging to Walter Harbord (Wal or Wally) (b.1923 in Brisbane-d.), master mariner in the Merchant Navy on British Phosphate Commission ships. According to the website SLide Rule Museum this is the Flying Fish 1017 Chemical V2 Walter was interviewed by the Australian at War Film Archive in 2003. He served on these ships: SS Corinda SS Macumba SS Mildura SS Nellor SS Ormiston SS ReynellaSextant in wooden boxInscription in Chinese on the boxanne rennie collection, wal harbord, merchant navy, seamen, seafarers, ww2, battle of the atlantic, walter harbord, nautical instrument, navigation, slide rule, flying fish 1017

One bamboo slide rule made by Faber Castell and case made of green and clear plastic. Item belong to CPL Andrew Gizycki and marked with brown tape with white type. Empty blue casing "Sun Hemmi Bamboo Slide Rule"37505 Cpl Andrew Gizycki. Radio Mech RAEME 7 RARslide rule, 7 rar, andrew gizycki

Henry Sutton is a talented world-wide accepted inventor with inventions relating to the telephone, photography, wireless, cars, motorcycles, and bicycles as well as many more inventions. Henry was also one of four brothers that ran the Sutton's Music Store after the death of their Father Richard Sutton. Henry Sutton taught Applied Electricity at the Ballarat School of Mines in 1883 to 1886."The Electrician" Practical Wireless Slide Rule, By Dr H.R. Belcher-Hickman in paper envelope including instructions for use associated with Henry Sutton. Stored in leather wine box2/6 netthenry sutton, "the electrician", practical wireless slide rule, dr. h.r. belcher-hickman, instructions

A mathematical slide rule Calculator used by engineers, mechanics, and similar tradesA typical precision slide rule used in City of Moorabbin 20thCA plastic, circular slide-ruleon face ; CIRCULAR 'CONCISE' SLIDE RULE MADE IN JAPAN on protector sleeve ; BASIL V R GREATREX PTY LTD / SYDNEY MELBOURNE / STEAM TRAPS / AIR DRYERS / ROTARY JOINTS / TEMPERATURE REGULATORS / HUMIDIFIERS / SPIRAL WOUND GASKETS,/ MECHANICAL PACKINGSmeasurements, slide-rule, slide scale, moorabbin, cheltenham, bentleigh, precision instruments, concise pty ltd

The Slide Rule was made in 1940 and used by the Royal Australian Air Force during WW2.This is an original Slide Rule that was used by RAAF during WW2Wooden Slide Rule CalculatorRule, Slide M.G. Mk III. W.H.H. 1940slide rule ww2 raaf

Was originally owned by Flt Lieutenant Donald Wilson RAAF navigator,service number 409636,posting at discharge 34 Squadron

Slide rules were commonly used prior to the invention of the calculator. The Slide rule was used for performing multiplication, division and other scientific functions up through the 1960s and prior to the development of the electronic calculator. Used by Frank Smythe, engineer. Used up to the 1960's prior to the invention of the electronic calculator. Metal rule, hard cardboard case. The slide rule consists of two divided scales, one fixed and one movable, and a sliding window called a cursor. The Slide rule was used for performing multiplication, division and other scientific functions up through the 1960s and the development of the electronic calculator. System Darmstadt dmake, sun Hemm, Japan. "F. SMYTH" is annotated on the slide rule cover. slide rule, circa 1950 slide rule, trade measurements and calculations slide rule

White celluloid and clear sliding 'bridge', black printing. Various units and scales. In a clear celluloid case with elongated end for easy removal and safe storage. Used for engineering calculations. Faber Castell Made in Germany faber castell, slide rule, engineering calculations, germany, german slide rule

Slide rule to enable Vickers Machine Gun crew to calculate fall of shotSlide Rule Mk III for Vickers Machine Gun using Mk VII AmmunitionRULE, SLIDE M.G. MK III W. H. H. 1940 (.303 VICKERS M. G.) (FOR MK VII AMMN.)slide rule, vickers mg

scientific instrument, cylinder slide rule, cylindrical logarithmic slide rule

A list of rules for guests staying at the Marysville Caravan Park.A list of rules for guests staying at the Marysville Caravan Park.marysville, victoria, australia, marysville caravan park, rule of the park

Small rule to measure distance when reading a scale map. Measurements in yards or meters.Small plastic rule, cream colour with black markings.map reading, scale ruler

Returned Sailors' and Soldiers' Imperial League of Australia Rules booklet 1919.Queenscliffe RSL Club HistoryReturned Sailors' and Soldiers' Imperial League of Australia Rules booklet 1919.Reverse " NIL "historical references

Travel slides were often purchased as a memento of a city visited. This collection of slides is of Melbourne circa 1970s, including the city skyline, Yarra and MCG, St Patrick's Cathedral and Princes Bridge and city skyline at dusk. Also includes slides of a koala and a kookaburra.5 colour slides slide sets, travel slides, melbourne, koalas, kookaburras

W&G 476 "Dual-Face" Trigonometrical (Stadia) Made in Melbourne, Australia by White & Gillespie Record Processing Co. a precision engineering firm. Front Scale LL (or LL3), L, A [ B, Reciprocal (or CI), C ] D, Cu, LL (or LL2) Back Scale Stadia V, H, Chord, A [ B, SIN<6 COS>5, SIN>5 COS <6, C ] D, TAN 30-6, COT 84-90, TAN 5-45, COT 85-45 Conventional Cursor This type of sliding scale was used to design Battleships during WWII. A subsidiary was W&G Records an Australian recording company that operated from the early 1950s to the 1970s. It released many significant recordings by Australian popular artists of the 1960s and also issued recordings of popular American artists, notably releases from ABC-Paramount (Ampar) label, which W&G distributed from 1955 until 1960, when the Australian distribution was taken over by Festival Records. A Trigonometrical sliding scale rule in its original boxW & G / DUALFACE / TRIGONOMETRICAL / SLIDE RULE / MODEL 476 measurements, slide rulers, physics, calculations, ship design, navigation, ww11 1939-45, white & gillespie record, processing company, melbourne, bentleigh, moorabbin, cheltenham, australian defense force

Slides of works produced by sculptor Anna Cohn between 1970 and 1984. It is available for loan to members of Women's Art Register and visitors to Richmond Library. These slides are significant in that the set is one of around 1000 such sets that are invaluable to Art ResearchersSet of twenty slidesEach slide has a sticky label with a number, the inscription Cohn, Anna, a title and other information including date, location and sizecohn, sculpture, sculpture society, arts writer, anna cohn

Provides a list of available colour slides from which duplicates could be ordered, both railways and tramways. Windsor publications published a number of books and ran a small shop in the City for a while. Was operated by Rodney Hudson. Some of his photos can be seen on the trams down under website.Demonstrates a sales order pamphlet of the mid 1970sPamphlet - folded foolscap sheet with a supplementary list - Windsor Publications slide listA number of slides have been marked for possible purchase along with a number on the supplementary list.photographs, windsor publications, rodney hudson, sales orders, lists

Photograph shows a large gum tree encircled by an iron fence. This tree is known as a canoe or scar tree - a section of bark has been removed by first nations people to make a canoe.Part of the John Ramsdale collection of slides and audio visual material.Colour photograph scanned from slide.No caption. Printed maker's mark on slide "Kodak Kodachrome Slide"canoe tree, scar tree, first nations

Photograph shows a rural scene with post and wire fence and trees. Location unknown.Part of the John Ramsdale collection of slides and audio visual material.Colour photograph scanned from slide.No caption. Printed maker's mark on slide "Kodak Kodachrome Slide"rural landscape, fences

Photograph shows the Plenty River at Greensborough with European trees on the bank.Part of the John Ramsdale collection of slides and audio visual material.Colour photograph scanned from slide.No caption. Printed maker's mark on slide "Kodak Kodachrome Slide"plenty river, vegetation

Photograph shows a 3-lane road with "Federally funded" sign This is Plenty Road Bundoora, near Parade college.Part of the John Ramsdale collection of slides and audio visual material.Colour photograph scanned from slide.No caption. Printed maker's mark on slide "Kodak Kodachrome Slide"plenty road bundoora, parade college

Photograph shows a sports ground with cricket nets. Looking toward Partington Flat from Kalparrin.Part of the John Ramsdale collection of slides and audio visual material.Colour photograph scanned from slide.No caption. Printed maker's mark on slide "Kodak Kodachrome Slide"partingtons flat, cricket, public reserves

Photograph shows a bridge with van, road is on steep hill. This is the carpark at Middle Gorge Park on Kurrak Road Yarrambat.Part of the John Ramsdale collection of slides and audio visual material.Colour photograph scanned from slide.No caption. Printed maker's mark on slide "Kodak Kodachrome Slide"middle gorge park, kurrak road yarrambat, plenty gorge metropolitan park

Photograph shows creek bed with vegetation, upstream from Plenty Gorge.Part of the John Ramsdale collection of slides and audio visual material.Colour photograph scanned from slide.No caption. Printed maker's mark on slide "Kodak Kodachrome Slide"plenty gorge, plenty river, mernda