10c greenish blue on thin paper, 1863-4, tied to 3c United States stamped envelope, which has been overprinted in black "Confederate States of America / Post Office Department", postmarked Richmond, Virginia, from the Chief of the Central Bureau of the CSA Post Office Department to the Chester Court House, an unusual private usage of this overprinted stationery cover, and  rare and with tremendous visual appeal, ex Robert W. Wiseman, with his backstamp, Haas, and MacBride; with 2023 Civil War Philatelic Society certificate.