Auction: Clocks, Watches & Scientific Instruments - 2283Location: BoltonDate / Time: May 03, 2005 10:00AM
Description:
Patent Model of Improved Safety-Valve for Steam Generators, No. 54,716, by Virgil D. Green, Watertown, Wisconsin, May 15, 1866, with circular boiler, gilt banner V.D. Green and spring and ball-valves, diam. 8 in., with patent tag and facsimile papers.
Estimate $100-150