4, 50 Fr. postal stamp with overprint "fortress Lorient", on document with cancellation through censorship stamp "fortress Lorient 23 March 1945" and handwritten signature of the Censorship officer Schmitt, very fine, with a edition from only 100 pieces one of the rarities of all issues "German occupation II. world war", detailed photo expertize Gerhard Krischke "the condition is perfect. " Michel 5.000.-