Lot 464
GB 1959 3d Deep violet "Dollis Hill Phosphor Trial", Spec. ST7(3)c

Stamps & Covers of Great Britain | S25007
Auction: 30 April 2025 at 10:30 BST
Estimate: £120 - £150
Description
1959 3d Deep violet "Dollis Hill Phosphor Trial". Very fine perforated block of four on gummed crowns watermarked (upright) paper, with two 3mm blue phosphor bands printed over the ink. Spec. ST7(3)c, £280+.

