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

Pair of seventeenth-century dividers

1600-1699

Sector by Charles Whitwell

1600-11

Addac adding machine

1926

Comptometer, manual operation

1930-1940

Stanhope square demonstrator, c.1805.

circa 1805

Burroughs Class 5 hand operated mechanical adding machine with ten registers

1920-1925

A Stchety, Russian Abacus.

1901-1930

Burroughs hand operated adding and listing machine

1917

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

1887-1903

Muldivo 'Mentor' calculator model WSR, 160 c1955.

circa 1955

Thales manual barrel calculating machine

1950-1960

Multo Brunsviga type barrel calculating machine

1950-1960

Double surface of revolution of constant negative curvature

1910

Revolution of constant negative curvature

1910

Sector signed John Allen

1630-1642

Ready reckoner for ship's cargoes

1807

Compendium rule signed Humfrey Cole

1574

Square signed "J.Ramsden, 1757"

1757

Gunter sector signed Elias Allen

1623

Slide rule for exchange of weights and measures

1815

Arithmometer by Elliott Brothers

1885-1894

Spiral slide-rule

1663

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

Calculating rule by Lenoir in centimetres with conversions

1800-1830

Washington calculator for problems of reinforced concrete

Navigational Computor Mark III

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

1925-1935

Multo calculating machine made by Addo

1955-1965

Felt and Tarrant Comptometer, 1887.

circa 1900

Morland's calculating machine

1666-1680

Comptometer by Felt and Tarrant Mfg. Co. Chicago

1915-1920

`Polygraphic papers' coder/de-coder

Architect's drawing instruments

Cassina LC1 Armchair

2015

Burroughs hand operated adding and listing machine

1913

Infant death rate and income

1926-1928

Geometrical Groin Vault, string surface model

1872

Drawing instruments by Charles Whitwell

1593-1610

Silver sector signed by Culpeper

1700-1737

Slide rule by Robert Bissaker

1654

Ready reckoner

1990

Napier's Bones

1690

12 inch architectonic sector in ivory and silver

1733-1795

Ruler

1917

PIC Slide Rule

1955

PIC Slide Rule

1950

Parallel Ruler

1880-1900

Slide Rule Die

1955-1967

Globetrotter slide rule, 1960s

1960s

John Seller's 'Sea Gunner's Rule' 1695

1695