4, 50 Fr. Petain, black green, with hand stamp overprint \"fortress Lorient\", variety \"overprints inverted\", lower margin copy with additional black overprint on the lower margin, cancelled by censorship stamp from 29. March 1945 and handwritten signature \"Sch\" of the Censorship officer Schmitt, lay so far for now before, probably the only one exists, photo expertize Krischke and photo expertize Lothar Herbst VP (2023) \"the condition is perfect, with typically minimal gum traces.