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
Lewis & Tylor, Ltd.
Physical object, 1940
Monromatic calculating machine
Monroe Calculating Machine Company
Schickard calculator (replica)
Physical object, 2000 ca.
Newstler Rechan-Walze system cylindrical slide rule
Albert Newstler A.G. Lahr I/B.
Physical object, c. 1930
Stanley boxwood slide rule
Aluminum Featherweight typewriter
Physical object, 1900 ca.
Arithma Addiator adding machine in brown leather case
Addiator-GmbH, Rechenmaschinenwerke, Berlin-Steglitz
Telegraph key and receiver
J. H. Bunnell & Company
Drafting set and related equipment
Crosby Steam Gage and Valve Company
Gunnery sight and level
Swift & Anderson Inc.
The Edison Mimeograph No. 1
A. B. Dick Company
Physical object, ca. 1880
Coggeshall timber measurement slide rule
Physical object, 1800 ca.
Circular slide rule
Physical object, 1955 ca.
Molle portable typewriter
Physical object, 1918
Ballistic coefficient slide rule
Whirlwind vacuum tube module
Massachusetts Institute of Technology (MIT)
Physical object, 1951
Amsler Polar Planimeter
A. Lietz Co
Field Microscope in wooden box