Sujet

Voltmeter / Ammeter. Creator: Unknown.

Légende

2-1/4 in. dia. range positive & negative 30 amps with 2 posts

Crédit

Photo12/Heritage Images/Heritage Art

Notre référence

HRM21A88_398

Model release

NA

Property release

NA

Licence

Droits gérés

Format disponible

38,0Mo (631,1Ko) / 30,8cm x 30,8cm / 3643 x 3643 (300dpi)

Mots clés

technology education color instrument gauge meter ammeter Colour Smithsonian Institution voltmeter National Air and Space Museum Educational Institution air and space museum electrical instrument scientific institution object Unknown steel glass plastic Keystone Archives Heritage Art copper alloy Paint NASM INSTRUMENTS-Miscellaneous