Great Britain 1967 1s9d Sir Francis Chichester’s world voyage imprimatur, SG751var.
A very fine unmounted mint, with full original gum, imperforate imprimatur with "NPM IMPRIMATUR" handstamps on reverse.
Very rare as only 10 examples were released in the National Postal Museum Archive sales 1984/5.
SG Catalogue Value: £2,250.
