68.5 x 5 (diameter) 38 x 10 (diameter) Gold painted tin, iron, brass and wood
Arquimedes' screws
68.5 x 5 (diameter) 38 x 10 (diameter)
Gold painted tin, iron, brass and wood
Sigaud de la Fond, Joseph-Aignan, Description et usage d'un Cabinet de Physique Expérimentale, Paris, 1775, Vol. I, Pl. XVI,
Figs. 4 and 5. 