Description:
Grover Master Plate for perforations. MP102/728 (1954) SR No. 8720 for Waterlow & Sons Ltd. Stamp description: S/C 20 Stamps. Size of Stamp: 24.15mm x 18.5mm; No. of perforations: 16 x 12; ; Pitch of perforations: 1.509375mm x 1.54416mm .