millivoltmeter
Datecirca 1940
Inventory Number1997-1-1103
ClassificationVoltmeter
Subject
Maker
Rawson Electrical Instrument Company
1918 - 1968
Place of Origin
Dimensions6.5 × 18.5 × 17.9 cm (2 9/16 × 7 5/16 × 7 1/16 in.)
Signedprinted on face of meter: RAWSON ELECTRICAL INSTRUMENT CO. / CAMBRIDGE, MASS. / No. 3239 / TYPE 501
Curatorial RemarksWith Physics 3 triangle, Engineering "MV-DC 2", "CRUFT INSTRUCTION", and "100 29-85" Written on bottom, "Rawson Co Rep & Calibrated Sept. 1948" From Science Center 5/31/78.
Rawson Electrical Instrument Company
Date: circa 1939
Object number: 0568
Jewell Electrical Instrument Company
Date: 1915-1929
Object number: 1997-1-0324
Weston Electrical Instrument Corporation
Date: circa 1923
Accessories: standardization certificiate (1923) inside lid
Object number: 1997-1-0335
Weston Electrical Instrument Corporation
Date: 1900-1917
Accessories: wooden instrument case (0526d); shunts (0526b and 0526c)
Object number: 0526a
Weston Electrical Instrument Corporation
Date: 1910-1917
Accessories: belongs with voltmeter (0526a); other accessories are another shunt (0526b) and the box (0526d)
Object number: 0526c
Weston Electrical Instrument Corporation
Date: 1900-1917
Accessories: millivoltmeter (0526a; shunts (0526b and 0526c)
Object number: 0526d
