SAINT HELENA 1970 (VARIETY) 4D DICKENS CENTENARY PLATE BLOCK WITH PURPLE TRIPLE
4d Charles Dickens Death Centenary plate 2B–1B–1B–2B block x 4, chalk-surfaced paper, PVA gum, with purple printed triple (affecting Job Trotter's background). Unique proving piece. Fresh and fine. Mint never hinged. SG249var; SC232var
Note: the double purple variety emanates from stock on chalk-surfaced paper with PVA gum sent to St Helena rather than Crown Agents (London) supplies on shiny unsurfaced paper with gum arabic
