Item Title:
Grover Master Plate for perforations. MP102/300 (1931) SR No. 8470 for Chile. Stamp description: High value postage. Size of Stamp: 32.844mm x 28.75mm; No. of perforations: 23 x 20; Pins: 0.035; Pitch of perforations: 1.428mm x 1.4375mm .