Rare Stamps & Postal History of the World

1857 24c gray, tied by grid cancel on cover to England, with Charleston, S.C. Dec 7 1860 departure pmk, red "19" and London 24 Dec 1860 arrival pmks, minor cover faults and missing backflap, fine usage (less than two weeks after this cover was sent, on 20 December 1860, South Carolina seceded from the Union),
Cat. Val. $1,000
Estimate: $150