Brass spring-driven bottle jack with verge escapement no. 2, from which small roasting meats were suspended and rotated over an open fire, with game wheel and winding key, by John Linwood, 1850-1896 Brass spring-driven bottle jack with verge escapement no. 2 1850-1896
Robinson's patent Archimedean screw escapement bottle jack, 1865, with 1 game wheel and 1 winding key. Outer shell missing Robinson's patent Archimedean screw escapement bottle jack 1865