unused 1870, 10c Bister on yellowish, tête-bêche pair (54a, Yvert 36b), horizontal pair, o.g., h.r., small stain on one stamp, otherwise fine, scarce, with 1985 Calves certificate, Scott retail $2,750.00, Yvert ffr37,500photo est.

Details
unused 1870, 10c Bister on yellowish, tête-bêche pair (54a, Yvert 36b), horizontal pair, o.g., h.r., small stain on one stamp, otherwise fine, scarce, with 1985 Calves certificate, Scott retail $2,750.00, Yvert ffr37,500photo est.