4 Fr. Postal stamp with overprint "fortress Lorient", corner margin piece lower right with date of printing (the vertical perforation from lower margin is partly separated), in perfect condition mint never hinged, issued only 200 pieces - only 2 corners of the sheet with date of printing possible, photo expertize Lothar Herbst VP (2018) : "the condition of the stamp is perfect. " - in existing form scarce variety!