Description:
Grover Master Plate for perforations. MP102/508 (1946) SR No. 1249 for Hampson & Bettridge. Stamp description: Postage stamps. Size of Stamp: 20mm x 24mm; No. of perforations: 14 x 17; Pins: 0.035; Pitch of perforations: .05625" x 1.4115mm .