Immagine Immagine


Sources0.20183900 1518289456, 4, Besso B., Le grandi invenzioni antiche e moderne, Fratelli Treves, Vol. 4, pag. 3, TAV. 80, fig. 0.
0.23784100 1518289456, 40, Despretz C., Traité élémentaire de physique, Méquignon-Marvis, Libraire-éditeur, Vol. 40, pag. 0, TAV. 400, fig. 9.
The indications that complete the voice "Working" have the following meaning: P = partial; R = repaired; * = used for the didactics; X = verification impossible.