Antigua 1976 Loggerhead Kingbird 3c (with imprint) set of 6 imperf progressive colour proofs comprising the 4 basic colours, blue & yellow composite plus all 4 colours (as SG 472B) unmounted mint
Antigua 1976 Loggerhead Kingbird 3c (with imprint) set of 6 imperf progressive colour proofs comprising the 4 basic colours, blue & yellow composite plus all 4 colours (as SG 472B) unmounted mint