relieves CREFELD 23.8. (1856), very rare cancel on insufficient franked letter from Denmark to a away from lying Hot by Krefeld, complete folded letter with full content from FREDERICIA 19.8.56, transit Hamburg K. D. P. A and arrival 23.8.56, with the "relieves" cancel postage due and forwarded, very rare, first on two documents registered Tax cancel, custom traces and stronger age patina, from a large Crefeld homeland history collection