Title: Voltmeter
Original Format: photograph: negative
Description: According to Bridge Lab. inventory, manufactured by Cambridge and Paul, although no maker’s mark is attached. Written on the scale: “Ayrton Mather E.S.V. No. L2864.” With wooden stand, possibly shop-made. Mfg: Cambridge & Paul Instrument Co.
Collection: Scientific Instruments
Caltech Archives ID: ST-PH-02
