Napier's Bones, c.1690.

Mathematics

c. 1690

Stanhope square demonstrator, c.1805.

Mathematics

c.1805

Gunter sector signed Elias Allen

Mathematics

1623

National 3000 automatic bookkeeping calculating machine

Mathematics

1935-1945

Felt and Tarrant Comptometer, 1887.

Mathematics

c. 1900

Drawing instruments by Charles Whitwell

Mathematics

1593-1610

Geometrical Groin Vault, string surface model

Mathematics

1872

A stchoty, Russian abacus.

Mathematics

1901-1930

Slide rule by Robert Bissaker

Mathematics

1654

Multo calculating machine made by Addo, Malmo, Swe

Mathematics

1955-1965

Morland's calculating machine, engraved "Samuel Morland, Inventor, 1666"

Mathematics

1666-1680

Carpenter's slide rule

Mathematics

1861-1910

Pair of seventeenth-century dividers

Mathematics

1600-1699

Napier's bones

Mathematics

1671-1700

Sector by Charles Whitwell

Mathematics

1600-11

Calculating machine (arithmometer), Paris, France, 1880-1900

Mathematics

1880-1900

Slide rule for exchange of weights and measures

Mathematics

1815

Calculating rule by Lenoir in centimetres with conversions

Mathematics

1800-1825

`Polygraphic papers' coder/de-coder by D'Montfort.

Mathematics

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

Mathematics

Double surface of revolution of constant negative

Mathematics

1910

Spirograph and examples of patterns drawn using it

Mathematics

1886

Square signed "J.Ramsden, 1757"

Mathematics

1757

Ready reckoner

Mathematics

1990

Compendium rule signed Humfrey Cole

Mathematics

1574

Sector signed John Allen

Mathematics

1630-1642

Samuel Morland's calculating machine

Mathematics

1666-1695

Ready reckoner for ship's cargoes

Mathematics

1807

Silver sector signed by Culpeper

Mathematics

1700-1737

Burroughs Class 4 1000 hand operated adding and listing machine

Mathematics

1925-1935

Comptometer, manual operation, sterling keyboard w

Mathematics

1930-1940

Multo Brunsviga type barrel calculating machine

Mathematics

1950-1960

Burroughs Class 5 hand operated mechanical adding

Mathematics

1920-1925

Washington calculator for problems of reinforced concrete

Mathematics

Drawing instrument set

Mathematics

c1890

Addac adding machine, marked for American currency

Mathematics

1926

Comptometer by Felt and Tarrant Mfg. Co. Chicago,

Mathematics

1915-1920

Single surface of revolution of constant negative

Mathematics

1910

Navigational Computor Mark III, calculating device

Mathematics

Set of architect's drawing instruments by various

Mathematics

The Ready Reckoner' book of tables, c 1826.

Mathematics

c.1826

Burroughs hand operated adding and listing machine

Mathematics

1917

Muldivo 'Mentor' calculator model WSR, 160 c1955.

Mathematics

c. 1955

Burroughs hand operated adding and listing machine

Mathematics

1913

Special metal protractor for machine for finding the roots of cubic equations

Mathematics

Early model wooden-case comptometer by Felt and Ta

Mathematics

1887-1903

12 inch architectonic sector in ivory and silver,

Mathematics

1733-1795

Thales manual barrel calculating machine, model DE

Mathematics

1950-1960

Diene's multi-base arithmetic blocks, 1960-1965.

Mathematics

1960-1965

Kryha ciphering machine, standard model, introduce

Mathematics

1926-1930