Description:
Grover & Co. technical drawings: Technical drawing of Closing Up Tool No. 65 and Stabbing Tool No. 64 used on Grover Perforators. Drawing number 2660. Drawn by J.E. on 19 December 1919. Traced by A.L.S. on 5 May 1922. Relates to drawing number 7198 drawn 25 April 1973. 58cm x 34cm.