4, 50 Fr. dark bluish green with overprint "fortress Lorient", perfectly mint never hinged, from right margin of sheet, issued only 100 examples, unsigned, photo expertize Gerhard Krischke and expertise Lothar Herbst VP (2025) "the condition is perfect. ", Michel 4.500.- - can we since of our 139. auction 2014 for the first time again in mint never hinged condition offer!