4, 50 Fr. postal stationery envelope in red with a surcharge of the French stamp 50 C. Mercury head" from "Piriac sur Mer 24. 03. 1945" to La Baule with arrival postmark dated 26. 03. 1945, edition of only 1,000 copies, expertise by Lothar Herbst VP (2023: "The condition is flawless.")