Description:
Grover Master Plate for perforations. MP102/678 (1952) SR No. 6852 for Waterlow & Sons. Stamp description: S/C Stamp 4 Stamps across. Size of Stamp: 210mm x 25mm; No. of perforations: 140 x 16; ; Pitch of perforations: 1.5mm x 1.5625mm .