Description:
Grover Master Plate for perforations. MP102/690 (1952) SR No. 7329 for Bradbury Wilkinson. Stamp description: D/C 23 Stamps across. Size of Stamp: 21.5mm x 26.5mm; No. of perforations: 15 x 18; ; Pitch of perforations: 1.43mm x 1.04331 .