Napier's Bones, c.1690.

Mathematics

c. 1690

Pack of four rolls quilted toilet paper with Penrose tiling

Mathematics

1997

Gunter sector signed Elias Allen

Mathematics

1623

A stchoty, Russian abacus.

Mathematics

1901-1930

National 3000 automatic bookkeeping calculating machine

Mathematics

1935-1945

Drawing instruments by Charles Whitwell

Mathematics

1593-1610

Felt and Tarrant Comptometer, 1887.

Mathematics

c. 1900

Stanhope square demonstrator, c.1805.

Mathematics

c.1805

Multo calculating machine made by Addo, Malmo, Swe

Mathematics

1955-1965

Sector by Charles Whitwell

Mathematics

1600-11

Drawing instrument set

Mathematics

c1890

Replica of Pascal's calculator

Mathematics

1926

Spirograph and examples of patterns drawn using it

Mathematics

1886

Washington calculator for problems of reinforced concrete

Mathematics

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

Mathematics

1666-1680

Klein bottle, 1995.

Mathematics

1995

Burroughs Class 5 hand operated mechanical adding

Mathematics

1920-1925

Napier's bones

Mathematics

1671-1700

Geometrical Groin Vault, string surface model

Mathematics

1872

Slide rule by Robert Bissaker

Mathematics

1654

Musical transposition calculator, in circular slide-rule format

Mathematics

1820

Multo Brunsviga type barrel calculating machine

Mathematics

1950-1960

Set of architect's drawing instruments by various

Mathematics

12 inch architectonic sector in ivory and silver,

Mathematics

1733-1795

Compendium rule signed Humfrey Cole

Mathematics

1574

Ready reckoner

Mathematics

1990

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

Mathematics

1880-1900

Calculating rule by Lenoir in centimetres with conversions

Mathematics

1800-1825

Muldivo 'Mentor' calculator model WSR, 160 c1955.

Mathematics

c. 1955

Square signed "J.Ramsden, 1757"

Mathematics

1757

Sector signed John Allen

Mathematics

1630-1642

Samuel Morland's calculating machine

Mathematics

1666-1695

Ready reckoner for ship's cargoes

Mathematics

1807

Pair of seventeenth-century dividers

Mathematics

1600-1699

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

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

Mathematics

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

Mathematics

1960-1965

Cylindrical form of Napier's bones

Mathematics

c. 1700

The Ready Reckoner' book of tables, c 1826.

Mathematics

c.1826

Burroughs hand operated adding and listing machine

Mathematics

1917

Comptometer, manual operation, sterling keyboard w

Mathematics

1930-1940

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

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