4, 50 Fr. Fee slip in type Ib on properly franked registered letter from \"Batz to the more 28.02.1945\" to Guerande with arrival cancel from 01.03.1945, in perfect condition, issued only 3.500 pieces in 7 types (to current state of research) - the probably all in always same number printed from 500 pieces was printed, expertized Tust BPP and detailed expertise Lothar Herbst VP (2023) : \"the condition is perfect. \"