Staffa 1977 Birds of Prey #01 Rough-Legged Buzzard 15p set of 6 imperf progressive colour proofs comprising the 4 individual colours plus 2 and all 4-colour composites unmounted mint
Staffa 1977 Birds of Prey #01 Rough-Legged Buzzard 15p set of 6 imperf progressive colour proofs comprising the 4 individual colours plus 2 and all 4-colour composites unmounted mint