Tina's Scientific Instruments

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Abaci

Addiators

Circular Slide Rules

Pocket Watch Slide Rules

Cylindrical Slide Rules

Mechanical Calculators

Scientific Instruments

Drawing Instruments

Slide Rule Books

British Slide Rules

French Slide Rules

German Slide Rules

American Slide Rules

Japanese Slide Rules

World Slide Rules

Blundell

British Thornton

Fearn's and Mear's

Unique

Aristo

Faber-Castell

Nestler

Hemmi

Relay/Ricoh

Dietzgen

Keuffel and Esser

Pickett and Eckel

Slide Charts

Electronics

Allbrit Polar Planimeter, 24392 from A.G.Thornton Ltd.

Allbrit Polar Planimeter, 42450.

Allbrit Radial Planimeter, 31500.

Keuffel and Esser, 21653 Radial Planimeter, made in Germany.

Goodman Hatchet Planimeter.

Haff 317 E Polar Planimeter.

Ott Polar Planimeter from A.Ott, Kempten, Bayern.

K'Nex Hatchet Planimeter

Buss Sykes Hydrometer

Spirit Level

Watts Builders Dumpy Level

Hilger and Watts Builders Dumpy Level

Stanley Theodolite

Cowley Automatic Level

Mitutoyu Micrometer

Moonstick

Lecture Demonstration Gyroscope

Interpretation Kit, Photographic, Pocket Size, FSN 6675-860-6005, Union Instrument Corporation, Plainfield, New Jersey, USA.

Stereo Viewer and Magnifier from the Photographic Interpretation Kit shown above.

This Kit consists of an Aristo 89 Slide Rule,a Propelling Pencil, a Notebook and a 4 Inch Vernier Caliper.

Gyroscope Extreme toy Gyroscope by Gyroscope.com

Tedco Toy Gyroscope

Universal Ring Dial, a working reproduction produced by Franklin Mint in 1987 part of the Great Instruments of Discovery collection produced in collaboration with the National Maritime Historical Society. With the pinhole on the crossbar set to the correct month and the dial set to the local latitude the time is read on the dial where the sun shines brightest through the hole onto the dial.

Compass Sundial, a reproduction piece purchased at the Rijksmuseum Schiphol Airport, Amsterdam, Netherlands.

Mayan Calender, Reproduction.

Feng Shui Compass used by Chinese Gentlemen to make sure your house is not incorrectly oriented.

Risis Feng Shui Compass, almost certainly a souvenir version although the compass does point North.

White and Gillespie Protractor

Map Distance Measurement Wheel

Map Distance Measurement Wheel

K'Nex Model of Stepped Reckoner

John Adams Toys Code Wheel

Engineering Instruments Code-Maker.

Pocket Enigma Cipher Machine. Educational Toy which demonstrates some of the underlying principles of the Enigma Machine. From Bletchley Park.

Enigma Kit. Educational Toy which demonstrates some of the underlying principles of the Enigma Machine. From the Imperial War Museum.

Franklin Heath Enigma. This is an Enigma demonstration model which utilises empty crisp cans and PDFs of the rotors provided by Franklin Heath Ltd. This model includes two refelectors, five rotors and a plug board. Easy to use and a nice demonstration of how an Enigma would be used in action.

Jefferson Disk Wheel Cypher. This is a working model of the Encryption Wheel invented and used by Thomas Jefferson in 1795.

U.S Civil War Cipher Disk Reproduction.

1945 Captain Midnight Secret Squadron Code Disk Badge.

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