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Microflash model 549 electronic flash (model 550)
1998.012.001
Edgerton, Germeshausen and Grier, Inc.
circa 1961
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Weight set
IN-0012
Central Scientific Corporation
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Weston Direct Current Voltmeter
IN-0014
Weston Electrical Instrument Company
circa 1888
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Weston Mil-Am-Meter, model #1
IN-0016
Weston Electrical Instrument Company
1910
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Weston A.C & D. C. Voltmeter, model 341
IN-0070
Weston Electrical Instrument Corp.
1949
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"The Description and Use of an Instrument Called the Double Scale of Proportion"
1993.071.001
1671
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Rand McNally AirGlobe
1983.009.038
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telephone dial
IN-0193
Siemens & Halske
pre-WWI
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telephone dial assembly
IN-0194
A. T. M. Co.
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Telephone number disks (7)
IN-0195
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dial number plate
IN-0196
Standard Telephone and Cables PTY. Ltd.
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telephone dial plates (4)
IN-0197
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Instrumentation Lab gyro test table #4
1994.005.001
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Aerobee 150 Sounding Rocket experimental payload and casing
IN-0864
MIT, Center for Space Research
1967
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Chrysalis HPA model
IN-1173
Drela, Mark
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Air France FAOHB aircraft model
1983.009.001
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Douglas D-558-1 Skystreak aircraft model.
1983.009.020
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wind tunnel research missile models
1987.032.002
1957-1958
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model of NASA Saturn V rocket
1984.081.008
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x ray astronomy rocket payload
1988.003.001
c. 1967
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tRNA model
1987.014.002
Cavicchi, Elizabeth
1975
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condenser: Allihn
1983.014.004
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reagent bottle
1983.014.008
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audio signal generator Model 205AG
IN-2241
Hewlett-Packard
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walkie-talkie
IN-2244
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transistor replica
1983.108.001
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Weston AC & DC radio set tester
1991.050.008
Weston Electrical Instrument Company
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cat whisker crystal radio
1985.040.002
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torsiograph
IN-1195
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microphone
1988.030.013
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telegraph receiver
IN-1084
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ticker tape machine with telegraph receiver
IN-1091
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telegraph transmitter
IN-1093
Hall, Thomas
c. 1870
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Marconi type spark gap transmitter
1985.040.001
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brass telegraph key
1985.040.003
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telephone body
IN-0165
Stromberg and Carlson
circa 1940
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dry cell telephone battery
IN-0173
Eveready
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dry cell telephone battery
IN-0174
Eveready
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telephone battery
IN-0175
Eveready
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telephone dial
IN-0187
after 1927
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telephone dial assembly
IN-0188
Northern Electric Co.
after 1927
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telephone dial assembly
IN-0189
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telephone dial assembly
IN-0190
A. E. Co.
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telephone dial assembly
IN-0191
Western Electric Company
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telephone dial assembly
IN-0192
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Telephone no. holders (6)
IN-0198
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telephone bell unit
IN-3099
Western Electric Company
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Telephone bell box
1985.047.001
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Bell system tool
1985.047.003
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dormline telephone switch piece
1991.018.001
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