Lot 2020
2020
Specimen 1924 12c. bright blue overprinted "SPECIMEN" variety double, fine mint. Very rare. R.P.S. Certificate (1972). S.G. D6. Photo
Specimen 1924 12c. bright blue overprinted "SPECIMEN" variety double, fine mint. Very rare. R.P.S. Certificate (1972). S.G. D6. Photo

Details
Specimen 1924 12c. bright blue overprinted "SPECIMEN" variety double, fine mint. Very rare. R.P.S. Certificate (1972). S.G. D6. Photo