unused 10c. on 1d. pair, one with variety "CENTIMES" for "CENTIMOS", a mint horizontal pair. B.P.A. Certificate (1973). S.G. 150a, £1200. Photo

Details
unused 10c. on 1d. pair, one with variety "CENTIMES" for "CENTIMOS", a mint horizontal pair. B.P.A. Certificate (1973). S.G. 150a, £1200. Photo