Description:
Grover Master Plate for perforations. MP102/431 (1939) SR No. (243) 235 for Bradbury Wilkinson & Co. Ltd. Stamp description: Postage stamps. Size of Stamp: 35.5mm x 26.5mm; No. of perforations: 23 x 18; Pins: 0.035; Pitch of perforations: .06075" x 1.472mm .