10 Pfg official communications unperforated proof, along with 5 Pfg on correctly franked letter from "LEONBERG 7 NOV 18" to Ditzingen, in perfect condition, the additional franking minimal toned, the cover above cut in, scarce use of the proof on cover, this is seeming unauthorized in collectorãs hands arrives was but yet unopposed transported, interesting document, expertized Emmel, Peschl and Infla as well photo expertize Klinkhammer BPP (2018), by Michel unknown