Description:
Grover Master Plate for perforations. MP102/353 (1934) SR No. 1744 for Harrisons. Stamp description: George V Postage 3 lines. Size of Stamp: .8" x .95"; No. of perforations: 15 x 17; Pins: 0.035; Pitch of perforations: .0533" x .0558" .