LINCOLN, MARY, First Lady. Autograph envelope (letter not present) addressed in her hand to "Dr. Anson G. Henry Olympia Washington Territory," 17 July 1865, red three-cent Jefferson stamp slightly damaged at top right corner, cork cancellation, routing inscription "Overland route" at left, partial black circular "Chicago Ill." datestamp, on black-bordered mourning envelope, backside partly torn away in opening.

Details
LINCOLN, MARY, First Lady. Autograph envelope (letter not present) addressed in her hand to "Dr. Anson G. Henry Olympia Washington Territory," 17 July 1865, red three-cent Jefferson stamp slightly damaged at top right corner, cork cancellation, routing inscription "Overland route" at left, partial black circular "Chicago Ill." datestamp, on black-bordered mourning envelope, backside partly torn away in opening.

Mary Lincoln was not granted the franking privilege for another six months, on 10 February 1866. Her letter, to a correspondent in the Pacific Northwest, was carried over the central overland route, following the old California-Oregon trail.