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Beggs deformeter gauges

Beggs deformeter gauges

George Erle Beggs
early 20th-mid 20th Century
Berger & Sons geodetic level

Berger & Sons geodetic level

C. L. Berger & Sons
circa 1902
comparative display of relays for Harvard Mark I-IV computers

comparative display of relays for Harvard Mark I-IV computers

Harvard Computation Laboratory
1944-1952
comparative display of standard counters and later IBM ASCC-Mark I counters

comparative display of standard counters and later IBM ASCC-Mark I counters

International Business Machines Corporation
1929-1938
Fuller's spiral slide rule

Fuller's spiral slide rule

W. F. Stanley & Company, Ltd.
1894-1895
Fuller's spiral slide rule

Fuller's spiral slide rule

W. F. Stanley & Company, Ltd.
1900
gaussmeter model D-79

gaussmeter model D-79

Dyna-Labs Inc.
1950-1960
GE type 1231-B amplifier and null detector

GE type 1231-B amplifier and null detector

General Radio Company
circa 1948
harmonic analyzer

harmonic analyzer

Zdenek Trnka
1947
Harvard Mark II final models of relays

Harvard Mark II final models of relays

Harvard Computation Laboratory
1947
Harvard Mark IV memory register, word "111"

Harvard Mark IV memory register, word "111"

Harvard Computation Laboratory
1949-1950
IBM ASCC-Harvard Mark I photo album

IBM ASCC-Harvard Mark I photo album

International Business Machines Corporation
1944
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The Collection of Historical Scientific Instruments
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