Autograph endorsement signed by Abraham Lincoln on verso of A.L.S., Sep 6, 1861 from John F. Potter to Lincoln requesting an army appointment for Mr. Helper of North Carolina

The New York Public Library states no known U.S. copyright for this item. Pinax admits it as US-PD only because the work predates 1900, making public domain near-certain worldwide; status outside the U.S. is not asserted and reuse elsewhere is the user's responsibility. Credit: From The New York Public Library.