1851, official letter with inner impression \"Grosh. Bad. Artillery Direction of the federal fortress Rastatt\" to the ammunition factory adventure cottage with on the back transition postmark \"CREUZNACH 20 1\" as well on face stamp of origin \"BADEN\" and arrival postmark from Birches field, very rare military letter with full content, provenance: lot 7065 / 299. Auction Heinrich Koehler, Wiesbaden.