Lot 668
GB: 1959 3d deep violet ‘Dollis Hill Phosphor Trial’ vertical pair, Crowns watermark

Stamps & Covers of the World | 5951
Auction: Day 2
Estimate: £80 - £120
Description
1959 3d deep violet ‘Dollis Hill Phosphor Trial’ vertical pair, Crowns watermark with one 4mm vertical blue phosphor centre band over the ink. Unmounted o.g. SG 575var/Spec. ST7(3)e

