CAMP SORGHUM, COLUMBIA S.C.: 10¢ Milky Blue #12a, gum stains, uncanceled but tied by manuscript docketing, bold OLD POINT COMFORT / VA / DEC / 16 [1864] double-circle cancel and DUE 6 in circle for U.S. unpaid rate on cover endorsed from "From Lieut. Wm. Henry Raymond, Co. H., N.Y. Vol. Arty. Prisoner of War, C.S. Military Prison, Columbia S.C. Per Flag of Truce Boat", manuscript examiner's mark "Exd. By T.G. Holland Lt. 1st Ga R" (guard at Camp Sorghum), Very Fine. There were three prisons in Columbia. The attribution to Camp Sorghum is based on military records researched by Brian Green (signed on back). Military records for Raymond accompany – captured at Cold Harbor. Ex-Murphy and Walske. A scarce Camp Sorghum prisoner-of-war cover via Richmond and Fortress Monroe. $2,000.