1 Fr. And 4 Fr. \"marshal Petain\" as patriotic franking fixed on registered letter as prepaid postage, used from \"Batz sur Mer 9.5.45\" to Pornichet with arrival cancel from 11.05.1945, the required postage was 6 Fr. And all became by letter posting the missing amount in cash charged and accordingly with one-line cancel \"taxe PERQUE\" receipted, the document is a day to End of the war mailed were, got the regular cancel of liberation \"Liberation\", further became the semi-official cancel of liberation \"ILOT de St NAZAIRE VIVE la LIBÉRATION\" affixed, the letter was to be called for shipped, at destination unfortunately unclaimed and to the dispatch post office sent back, a postal reference stamp \"returned A L`ENVOYEUR\" confirms this, detailed expertise Lothar Herbst VP (2023) : \"the condition is perfect. \"