Vintage Model Stirling Hot Air Engine on Display BaseSphere Auctions LLC4.4(157)$10(1 bid)5 days Left
Large Jensen No. 95 Twin Cylinder Live Steam Engine w/ Original Wood CrateSphere Auctions LLC4.4(157)$640(3 bids)5 days Left
Antique Cast Iron Horizontal Steam Engine Model DisplaySphere Auctions LLC4.4(157)$30(3 bids)5 days Left
Chuck Yeager Signed Bell X-1 Aircraft PhotographBid Again Auctions (American Space Museum)4.4(21)$100Aug 29, 2026
