United States--History--Civil War, 1861-1865; Postal service--United States--History; Covers (Philatety)--United States--History; Patriotic envelopes; Lincoln, Abraham, 1809-1865; Johnson, Andrew, 1808-1875
Design of Lincoln and Andrew Johnson portraits with "With these true hearts, through Victory to Union and Peace." Design in black on white envelope. L. Prang & Co., Boston.