Gwen Bell Artifact and Book Collection
This rare and important collection comprises written works and physical objects relating to early calculating instruments and methods. These works and objects are held in the permanent collection of the Computer History Museum after generous gifts in 2012 and 2014 by Museum co-founders Gwen and Gordon Bell. The text items in this collection comprise works written in French, German, Latin and English. It begins in the early 17th century (ending in about 1980) and includes dozens of works such as mathematical, accounting, farming, astronomy, merchant and engineering tables, monographs on slide rules, arithmometers, planimeters, sectors, Napier´s Bones, military compasses, telescopes, as well as later-day commentaries on these instruments and their history. The written works are available online in scanned (PDF) form using the search function below. The object collection was established as a complement to the rare book collection and both serve to document the early origins and development of human measurement and computation. Its objects include: abaci, sectors, linear, circular and cylindrical slide rules, mechanical and electrical/electronic adding machines and calculators, and replicas of early calculators such as the Pascaline and the Schikard. With both written sources and complementary physical objects, the Bell Collection offers researchers a unique window into the early origins and development of history´s most significant calculating devices and methods.
Search Gwen Bell Artifact and Book Collection
Field Microscope in wooden box
Trigonometer - brass survey instrument
see curator notes and Staff comments
Curta mechanical calculator
Physical object, 1954
Elliott Brothers Ltd
Physical object, 1854 ca.
HP-65 Programmable scientific calculator
Hewlett-Packard Company (HP)
Physical object, 1974
Fowler's "Jubilee Magnum," slide rule
Fowler and Company, Manchester
Physical object, 1948
Physical object, 1920 ca.
J. Amsler-Laffon's Mechanical Integrator
Physical object, 1883 ca.
Burroughs Portable mechanical adding machine
Burroughs Printing Adding Machine
Burroughs Adding Machine Company
ENIGMA Encryption/Decryption Device parts
Physical object, 1930 ca.
Millionaire mechanical calculator number input slide switch
Compurobot programmable toy robot
Physical object, Undated
Curta calculator case
Physical object, 1954
Improvements in the methods of and apparatus for compiling statistics: complete specification
Darling and Son, Ltd
Millionaire mechanical calculator face plate
Hans W. Egli Co
Guglielmo Marconi : 1874 - 1937 : a science museum booklet
Her Majesty's Stationery Office
Tables of partitions
The Indian Mathematical Society
Logic machines and diagrams
McGraw-Hill Book Company, Inc.
Newham's rotary principal interest demonstrator