ammeter for use with Zeiss photomicrographic apparatus
Date: circa 1920
Inventory Number: 2007-1-0115
Classification: Ammeter
Subject:
Maker: Weston Electrical Instrument Corporation (founded 1888)
User: Bussey Institution (1871 - 1936)
User: Gray Herbarium (founded 1842)
Donor: Elso S. Barghoorn (1915 - 1984)
Cultural Region:
Place of Origin:
Dimensions:
11.5 x 10 x 10 cm (4 1/2 x 3 15/16 x 3 15/16 in.)
Material:
Description:
Wedge-shaped box with black crackle finish houses a standard Weston ammeter, model 301. It measures amps of direct current from 0-20. Two binding posts are on top. The dial is white.
SignedWESTON ELECTRICAL INSTRUMENT CORP., NEWARK, N.J., U.S.A
InscribedNo. 936489
MODEL 301
PAT. NOV.6.'88. APR.29.'90. FEB.17.'91. OCT.4.'98. JULY.16.'01
MODEL 301
PAT. NOV.6.'88. APR.29.'90. FEB.17.'91. OCT.4.'98. JULY.16.'01
