Virtual Museum - Traversi Museum - DATABASE
Instrument's card
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SourcesCadiat E. - Dubost L., Traité pratique d'électricité industrielle, Libraire Polytechnique Baudry et, Paris, 1889, pag. 110, fig. 57.
The indications that complete the voices of the conservation state have the following meanings:
(?) = Perhaps complete, M = maintenance, P = Partial, R = restored, D = used for teaching, NC = not checked; X = impossible to verify.