GRENADA 1970 PIRATES PROGRESSIVE DIE PROOFS IN UNADOPTED COLOURS
Wide-margined imperforate progressive die proofs, lacking country name and other details, in unadopted colours on chalk-surfaced, gummed paper (4 items). Ex Bradbury Wilkinson archives. An extraordinary and unique assembly. Stray ink marks otherwise generally fine. SG367var-370var; SC345var-348var
