2 Fr. \" marshal Petain\" with hand stamp overprint \"fortress Lorient\", properly franked single franking during the second postage period, which from March 1945 to End of the war 8.5.1945 war valid, addressed to La Baule in the fortress St. Nazaire, from January 1945 to May inventory a local established postal service traffic over the sea routes between the both German Atlantic fortresses, expertise Lothar Herbst VP (2023) : \"the condition of the stamp is perfect. The letter point at few as usual weak yellowish age traces on. The edition of the stamp war only 150 piece. The stamp is very rare, as well as all covers from the fortress Lorient. \", Michel 2.000.-