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Microflash model 549 electronic flash (model 550)
Edgerton, Germeshausen and Grier, Inc.
circa 1961
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Weight set
Central Scientific Corporation
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Weston Direct Current Voltmeter
Weston Electrical Instrument Company
circa 1888
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Weston Mil-Am-Meter, model #1
Weston Electrical Instrument Company
1910
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Weston A.C & D. C. Voltmeter, model 341
Weston Electrical Instrument Corp.
1949
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"The Description and Use of an Instrument Called the Double Scale of Proportion"
1671
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Rand McNally AirGlobe
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telephone dial
Siemens & Halske
pre-WWI
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telephone dial assembly
A. T. M. Co.
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Telephone number disks (7)
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dial number plate
Standard Telephone and Cables PTY. Ltd.
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telephone dial plates (4)
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Instrumentation Lab gyro test table #4
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Aerobee 150 Sounding Rocket experimental payload and casing
MIT, Center for Space Research
1967
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Chrysalis HPA model
Drela, Mark
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Air France FAOHB aircraft model
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Douglas D-558-1 Skystreak aircraft model.
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wind tunnel research missile models
1957-1958
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model of NASA Saturn V rocket
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x ray astronomy rocket payload
c. 1967
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tRNA model
Cavicchi, Elizabeth
1975
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condenser: Allihn
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reagent bottle
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audio signal generator Model 205AG
Hewlett-Packard
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walkie-talkie
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transistor replica
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Weston AC & DC radio set tester
Weston Electrical Instrument Company
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cat whisker crystal radio
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torsiograph
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microphone
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telegraph receiver
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ticker tape machine with telegraph receiver
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telegraph transmitter
Hall, Thomas
c. 1870
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Marconi type spark gap transmitter
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brass telegraph key
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telephone body
Stromberg and Carlson
circa 1940
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dry cell telephone battery
Eveready
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dry cell telephone battery
Eveready
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telephone battery
Eveready
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telephone dial
after 1927
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telephone dial assembly
Northern Electric Co.
after 1927
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telephone dial assembly
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telephone dial assembly
A. E. Co.
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telephone dial assembly
Western Electric Company
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telephone dial assembly
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Telephone no. holders (6)
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telephone bell unit
Western Electric Company
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Telephone bell box
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Bell system tool
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dormline telephone switch piece
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