2 penny to 5 Mark black overprint, complete set on seven registered letters other than local with cancellation through airlift cancel \"BERLIN SW 11 ac 1.10.48\", all documents except for the properly franked franked with Michel number 1 (2) and 15 are overfranked, faultless condition, photo expertize H. D. Schlegel BPP (2023) : \"the quality is perfect. \", Michel for single stamp 2.400.- - very nice document set of this issue!