拍品专文
This is similar to devices produced by the Ornamental Turning Company, set up by Gerrard after the closure of Holtzapffel.
细节
A lapping and grinding device
for hand-rest socket mounting, with pulley drive, adjustable protractor motion and two slides, in steel and lacquered brass
for hand-rest socket mounting, with pulley drive, adjustable protractor motion and two slides, in steel and lacquered brass