Description:
Grover & Co. technical drawings: Technical drawing of Inverted Tooth Chain Wheels Chains and Semi-Automatic Feed for Power Stamping Machine. Drawing number 818 (SH) and 4108 (G). Scale full size. Date 5 April 1932. Pencil annotation: 'Not Reqd on Auto. See revised dwg no. 3496. 71cm x 46cm.