Napier's Bones, c.1690.

Mathematics

c. 1690

Pack of four rolls quilted toilet paper with Penrose tiling

Mathematics

1997

A stchoty, Russian abacus.

Mathematics

1901-1930

Musical transposition calculator, in circular slide-rule format

Mathematics

1820

National 3000 automatic bookkeeping calculating machine

Mathematics

1935-1945

Sector by Charles Whitwell

Mathematics

1600-11

Gunter sector signed Elias Allen

Mathematics

1623

Washington calculator for problems of reinforced concrete

Mathematics

Drawing instruments by Charles Whitwell

Mathematics

1593-1610

Multo calculating machine made by Addo, Malmo, Swe

Mathematics

1955-1965

Sector signed John Allen

Mathematics

1630-1642

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

Mathematics

1666-1680

Slide rule by Robert Bissaker

Mathematics

1654

Klein bottle, 1995.

Mathematics

1995

Felt and Tarrant Comptometer, 1887.

Mathematics

c. 1900

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

Mathematics

1880-1900

Square signed "J.Ramsden, 1757"

Mathematics

1757

Geometrical Groin Vault, string surface model

Mathematics

1872

Stanhope square demonstrator, c.1805.

Mathematics

c.1805

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

Mathematics

1960-1965

Replica of Pascal's calculator

Mathematics

1926

Compendium rule signed Humfrey Cole

Mathematics

1574

Samuel Morland's calculating machine

Mathematics

1666-1695

Napier's bones

Mathematics

1671-1700

Pair of seventeenth-century dividers

Mathematics

1600-1699

Calculating rule by Lenoir in centimetres with conversions

Mathematics

1800-1825

Thales manual barrel calculating machine, model DE

Mathematics

1950-1960

Spirograph and examples of patterns drawn using it

Mathematics

1886

Ready reckoner

Mathematics

1990

Ready reckoner for ship's cargoes

Mathematics

1807

Brunsviga calculating machine

Mathematics

1931-1939

Silver sector signed by Culpeper

Mathematics

1700-1737

Slide rule for exchange of weights and measures

Mathematics

1815

Burroughs Class 4 1000 hand operated adding and listing machine

Mathematics

1925-1935

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

Mathematics

Muldivo 'Mentor' calculator model WSR, 160 c1955.

Mathematics

c. 1955

Addac adding machine, marked for American currency

Mathematics

1926

Set of architect's drawing instruments by various

Mathematics

Double surface of revolution of constant negative

Mathematics

1910

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

Mathematics

The Ready Reckoner' book of tables, c 1826.

Mathematics

c.1826

Consul' the Educated Monkey

Mathematics

1916-1918

Comptometer, manual operation, sterling keyboard w

Mathematics

1930-1940

Burroughs hand operated adding and listing machine

Mathematics

1917

Multo Brunsviga type barrel calculating machine

Mathematics

1950-1960

Burroughs Class 5 hand operated mechanical adding

Mathematics

1920-1925

Drawing instrument set

Mathematics

c1890

Single surface of revolution of constant negative

Mathematics

1910

Burroughs hand operated adding and listing machine

Mathematics

1913

Comptometer by Felt and Tarrant Mfg. Co. Chicago,

Mathematics

1915-1920