Description:
Grover Master Plate for perforations. MP102/714 (1953) SR No. 8180 for Waterlow & Sons. Stamp description: Alternate 11 Stamps. Size of Stamp: 35.4838mm + 14.5161mm x 22mm; No. of perforations: 22 & 9 x 14; ; Pitch of perforations: 1.163mm x 1.57+mm .