细节
A 19th-Century electric motor,
by Nalder Bros & Co Westminster No. 30,060, the armature enclosed in a globular iron case, with lacquered-brass attachments and contact breaker points, labelled Battery, Bridge/Galvo and Bridge, on mahogany plinth base -- 11½in. (29.5cm.) wide
See Illustration
by Nalder Bros & Co Westminster No. 30,060, the armature enclosed in a globular iron case, with lacquered-brass attachments and contact breaker points, labelled Battery, Bridge/Galvo and Bridge, on mahogany plinth base -- 11½in. (29.5cm.) wide
See Illustration