Patent Model of Improved Safety-Valve for Steam Generators
- Sold for:
- Clocks, Watches & Scientific Instruments - 2283
- Date / Time :
- May 03, 2005 10:00AM
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.