unused  1929 "THREE/CENTS" on 6c., a fresh mint example showing surcharge inverted. B.P.A. Certificate (1986). S.G. 188a, £600. Photo
unused 1929 "THREE/CENTS" on 6c., a fresh mint example showing surcharge inverted. B.P.A. Certificate (1986). S.G. 188a, £600. Photo

Details
unused 1929 "THREE/CENTS" on 6c., a fresh mint example showing surcharge inverted. B.P.A. Certificate (1986). S.G. 188a, £600. Photo