"Immortal 600", Morris Island S.C. Inner prisoner-of-war orange cover to Liberty Va., endorse (Image)

E. $ 750-1,000

"Immortal 600", Fort Pulaski Ga. Inner prisoner-of-war orange cover to Liberty Va., endorsed (Image)

E. $ 750-1,000

Letterman General Hospital, Gettysburg Pa. Manuscript "R.W. Martin Lt. Col. 53 Va. Vols."< (Image)

E. $ 1,000-1,500

Fort McHenry, Baltimore Md. Manuscript "From R.W. Martin Lt. Col. 53 Va. Vols." endors (Image)

E. $ 750-1,000

Point Lookout, Md. 3c Rose (65), tied by target cancel, "Point Lookout Md. Feb. 24" circular (Image)

E. $ 750-1,000

Point Lookout, Md. Manuscript "R.W. Martin Lt. Col. 53 Va. Vols." endorsement on orang (Image)

E. $ 750-1,000

Columbia S.C. Prison. Buff legal-size cover addressed to "Lt. Col. R.W. Martin Comdg. P (Image)

E. $ 400-500

Fort Delaware, Delaware City. Orange prisoner-of-war cover to Fancy Grove Va. endorsed "By (Image)

E. $ 3,000-4,000

Fort Delaware, Delaware City. Cover addressed to Dr. Edward S. Sharp, "Political Prisoner, (Image)

E. $ 300-400

Camp Douglas, Chicago Ill. 3c Rose, bright color, tied by bold strike of blue segmented cork (Image)

E. $ 200-300

Rock Island Ill. Blue oval "R.I. Barracks, Prisoner's Letter, Examined" handstamp, 3c Rose (6 (Image)

E. $ 200-300

Rock Island Barracks, Ill. Two covers showing each of the two main styles of censor handstamp (Image)

E. $ 500-750

State Penitentiary, Alton Ill. 3c Rose (65) tied by blue target cancel with matching "Alton I (Image)

E. $ 750-1,000

Camp Morton Ind. 3c Rose (65), cancelled by grid with matching "Indianapolis Ind. Feb. 25, 18 (Image)

E. $ 1,000-1,500

Camp Morton Ind. 3c Rose (65), cancelled by target with matching "Indianapolis Ind. Aug. 4, 1 (Image)

E. $ 300-400

Point Lookout, Md. Incoming orange inner cover addressed to Mr. Armistead Thompson at Point L (Image)

E. $ 200-300

Point Lookout, Md. Narrow prisoner-of-war cover to Salem Va., endorsed "By Flag of Truce", (Image)

E. $ 1,000-1,500

Point Lookout, Md. 3c Rose (65), tied by target cancel, "Point Lookout Md. Oct. 10 '64" doubl (Image)

E. $ 400-500

Camp Parole, Annapolis Md. Buff cover from parolee D.H. Shriver of the 11th Pennsylvania Cava (Image)

E. $ 750-1,000

Fort Warren, Boston Mass. 3c Rose (65) tied by "Paid" in frame, red "Boston Mass. May 16" cir (Image)

E. $ 400-500

Hart's Island N.Y. Incoming unsealed cover addressed to James Morey "Prison Camp Harts Is. (Image)

E. $ 500-750

David's Island, DeCamp General Hospital, Pelham N.Y. Prisoner-of-war cover from C.O. Wheeler (Image)

E. $ 1,500-2,000

Elmira Prison, N.Y. Prisoner-of-war cover to Cussetta Ga., "Prisoner's Letter Examined Elmira (Image)

E. $ 5,000-7,500

Elmira Prison, N.Y. Prisoner-of-war cover to Saint Paul N.C., endorsed "Via Fortress Monro (Image)

E. $ 750-1,000

Johnson's Island. Buff cover bearing 3c Rose (65) and 10c Blue, Die B (12), large marg (Image)

E. $ 750-1,000