Nevis 1985 Bluebird & Cardinal (John Audubon 5c) imperf progressive colour proof se-tenant pair printed in magenta & blue only (as SG 269a) unmounted mint
Nevis 1985 Bluebird & Cardinal (John Audubon 5c) imperf progressive colour proof se-tenant pair printed in magenta & blue only (as SG 269a) unmounted mint