10+2 and 20+3 Pfg Bach seals, always as a single franking, 10 Pfg on locate picture postcard with special cancel "Munich / Munic Electro fair 27.9.50", 20 Pfg with upper margin on correctly franked long distance cover with machine cancel "HEIDELBERG 6.9.50" with advertising insert "the post peruses address files" to Karlsruhe, in perfect condition, Michel 155.- plusplus