Confederacy, Head Quarters Cavalry Corps, Army of Northern Virginia. Imprint on cover to Macon, Ga. bearing 1863, 10¢ blue, large margins including bottom sheet margin showing "Engravers" imprint, cancelled by grid, this is the Official Stationery that J.E.B. Stuart used; some gum toning and small surface abrasion, Very Fine, ex-Walcott. Scott No. 11  Estimate $400 - 600. $0 (Image)