Image
Category
Collection
On Display
Object type
Maker
Place of origin
Date

Napier's Bones

1690

Addac adding machine

1926

Slide rule, "System Rietz", by Sun Hemmi, Japan

Stanhope square demonstrator, c.1805.

circa 1805

Arithmometer by Elliott Brothers

1885-1894

Ready reckoner for ship's cargoes

1807

Sector signed John Allen

1630-1642

Gunter sector signed Elias Allen

1623

Spiral slide-rule

1663

Sector by Charles Whitwell

1600-11

Compendium rule signed Humfrey Cole

1574

Square signed "J.Ramsden, 1757"

1757

Slide rule for exchange of weights and measures

1815

Calculating rule by Lenoir in centimetres with conversions

1800-1830

Double surface of revolution of constant negative curvature

1910

Muldivo 'Mentor' calculator model WSR, 160 c1955.

circa 1955

Comptometer, manual operation

1930-1940

Burroughs Class 5 hand operated mechanical adding machine with ten registers

1920-1925

Thales manual barrel calculating machine

1950-1960

Burroughs hand operated adding and listing machine

1917

Revolution of constant negative curvature

1910

Multo Brunsviga type barrel calculating machine

1950-1960

Early model wooden-case comptometer by Felt and Tarrant Manufacturing Co.

1887-1903

A Stchety, Russian Abacus.

1901-1930

Pair of seventeenth-century dividers

1600-1699

Navigational Computor Mark III

Washington calculator for problems of reinforced concrete

Burroughs Class 4 1000 hand operated adding and listing machine with keyboard for Sterling currency

1925-1935

Cassina LC1 Armchair

2015

Multo calculating machine made by Addo

1955-1965

Burroughs hand operated adding and listing machine

1913

Felt and Tarrant Comptometer, 1887.

circa 1900

Comptometer by Felt and Tarrant Mfg. Co. Chicago

1915-1920

`Polygraphic papers' coder/de-coder

Infant death rate and income

1926-1928

Architect's drawing instruments

Geometrical Groin Vault, string surface model

1872

Ready reckoner

1990

Morland's calculating machine

1666-1680

12 inch architectonic sector in ivory and silver

1733-1795

Slide rule by Robert Bissaker

1654

Silver sector signed by Culpeper

1700-1737

Drawing instruments by Charles Whitwell

1593-1610

Accounting machine, National Cash Register Class 3000

1945-1955

Medieval Exchequer Tally Sticks

circa 1440

Napier's bones or rods

1671-1700

Replica of Pascal's calculator

1926

British Thornton Slide Rule

1967-1975

Fowler's "Magnum" Calculator

1938-1943

Henrici's harmonic analyser, No 3, 1894.

1894