Very detailed working model steam traction engineChupp Auctions & Real Estate, LLC4.6(277)$950(5 bids)Mar 27, 2026
1910's side shaft gas engine prototypeChupp Auctions & Real Estate, LLC4.6(277)$800(3 bids)Mar 27, 2026
Robert Bénard (1734–1777) – Technical Study of a Machine for Pivot Friction ExperimentsProverde Auctions4.4(53)$5(1 bid)4 days Left