Description:
Grover Master Plate for perforations. MP102/497 (1945) SR No. 6 for A. B. Shaw Co. Ltd Sprague. Stamp description: Stamp Sunday school. Size of Stamp: 2.1875" x 1.625"; No. of perforations: 35 x 26; Pins: 0.035; Pitch of perforations: .0625" x .0625" .