細節
A lacquered brass galvanometer
by The Cambridge and Paul Instrument Co. Ltd. England, C14891, in cylindrical case on adjustable screw feet -- 12/1/2in. (32 cm. high, early 20th century
by The Cambridge and Paul Instrument Co. Ltd. England, C14891, in cylindrical case on adjustable screw feet -- 12/1/2in. (32 cm. high, early 20th century
拍場告示
There is an additional Galvanometer in this lot