Dominica 1975-78 Mango Longue 20c set of 6 imperf progressive colour proofs comprising the 4 basic colours plus blue & yellow and blue, yellow & magenta composites (as SG 499) unmounted mint
Dominica 1975-78 Mango Longue 20c set of 6 imperf progressive colour proofs comprising the 4 basic colours plus blue & yellow and blue, yellow & magenta composites (as SG 499) unmounted mint