A vertical cutting frame (as Vol V Fig.90); an eccentric cutting frame (as Vol V Fig. 193); a universal cutting frame, E. Baker's pattern (as Journal of the Amateur Mechanical Society, Oct. 1871, p. 139); a Holtzapffel-type goneostat case with till top containing two powder tins and a goneostat with three slides for stones and laps.

细节

A vertical cutting frame (as Vol V Fig.90); an eccentric cutting frame (as Vol V Fig. 193); a universal cutting frame, E. Baker's pattern (as Journal of the Amateur Mechanical Society, Oct. 1871, p. 139); a Holtzapffel-type goneostat case with till top containing two powder tins and a goneostat with three slides for stones and laps.

拍品专文

The goneostat appears very old, not of Holtzapffel's usual style, but unlikely to be of amateur construction.