Confederacy, Fort Delaware Prison, Delaware City, Delaware, lovely prisoner of war cover franked with United States 1861 3¢ rose cancelled by grid & postmarked "Delaware City, Del./Apr. 19" cds in combination with Confederate States 1863-64 10¢ blue tied by "Richmond, Va./May 9" cds, cover endorsed at lower left "via Fortress Monroe & Flag of Truce" and struck with "Prisoner's Letter/Examined/Fort Delaware" oval handstamp, 10¢ stamp with pre-use crease, Very Fine; with 1992 C.S.A. certificate. Estimate  $750 - 1,000. Mail from Confederate soldiers in Union prisons to the South generally bore the U.S. 3¢ stamp of 1861. However, Confederate postage was also required to be paid. This was accomplished by placing a Confederate stamp on the envelope when the prisoner had access to such postage. If the envelope lacked the proper Confederate postage, it was forwarded within the Confederacy with a postage "Due 10" marking. Because most Southern prisoners could not obtain Confederate stamps, covers with both Union and Confederate stamps are quite scarce. $0 (Image)

Confederacy, Fort Delaware Prison, Delaware City, Delaware, Prisoner's Letter, Fort Delaware, Del, Examinedoval handstamp on cover to Springfield, Ky. franked with U.S. 3¢ rose tied Delaware City grid duplex, July 13, Fine. Estimate  $100 - 150. $0 (Image)