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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
the Boston universal pantograph

the Boston universal pantograph

Gottfried G. Ledder
circa 1904
box of surveying instruments

box of surveying instruments

Buff & Berger
1870-1950
Buff & Berger Y level

Buff & Berger Y level

Buff & Berger
circa 1880
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
Fessel dumpy level

Fessel dumpy level

Herman E. Fessel
circa 1870
Frederick Eckel Y level

Frederick Eckel Y level

Frederick Eckel
circa 1885
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
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The Collection of Historical Scientific Instruments
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