Lot 463
GB 1959 3d Deep violet “Dollis Hill Phosphor Trial", Spec. ST7(3)d

Stamps & Covers of Great Britain | S25004
Auction: 25 February 2025 at 10:00 GMT
Estimate: £200 - £300
Description
1959 3d Deep violet “Dollis Hill Phosphor Trial“. Very fine perforated block of four on gummed crowns watermarked (sideways left) paper, with two 3mm blue phosphor bands printed over the ink. Scarce. Spec. ST7(3)d, £800+.

