Weston Photronic Exposure Meter Model 650. Photoelectric exposure meter
1935
Weston model 440 galvanometer
1926
Weston direct-reading alternating and direct current voltmeter
1936
Weston moving-coil ammeter, 1889-1900
1889-1900
Direct reading two-range voltmeter
1900
Moving coil portable galvanometer
1890-1891
Weston thermoammeter
Moving-coil voltmeter
1951
Weston Photronic Exposure Meter
Standard cell, model 4, serial no.3653
1900
photo-electric exposure meter model 627
circa 1938
Boxed 15-amp shunt, for Weston Millivoltmeter
1920
Portable shunt for Weston Standard milli-voltmeter
Weston's direct-reading volt/amp meter
Early moving coil voltmeter
1889
Leather Case and Strap, and Descriptive Booklet for Model 617 Universal Exposure Meter
portable shunt for Weston Standard milli-voltmeter No.22161 for 15
Model 617 Universal Exposure Meter
Weston galvanometer, model 375, 30-0-30
1926
Weston Photronic Exposure Meter
circa 1934
Weston Millivoltmeter, with box of 3 shunts
1920
Model 603 illumination meter by Weston Electrical Instrument Co.
1928-1938
A.C. ammeter model 155
Weston Standard portable alternating and direct current wattmeter no.302
D.C. galvanometer relay model 30 no. 24904
1939
Weston thermo-milliammeter model 425
Ammeter shunts
Benjamin 'Model B' Lightmeter
1930-1950
Model 617 Universal exposure meter with leather case and strap
Single-phase portable a.c. and d.c. wattmeter
1926
Weston Electrical Instrument Co Synchroscope 60Hz
Model 603 illumination meter by Weston Electrical Instrument Co.
1928-1938
Weston Cine exposure meter
Case for Benjamin 'Model B' Lightmeter
1930-1950
Baffle for Benjamin 'Model B' Lightmeter
1930-1950
Benjamin 'Model B' Lightmeter
1930-1950
Cardboard Box for Benjamin 'Model B' Lightmeter
1930-1950
Instrument lid, for model 603 illumination meter
1928-1938
Baffle for Benjamin 'Model B' Lightmeter
1930-1950
Ammeter model 45 no.457 by the Weston Electrical Instrument Co.
1900-1919
Weston direct-reading laboratory-standard millivoltmeter no.780
1920