3 Sgr. Black on yellow, having bright colors and having full margins copy from left margin of sheet (5 mm), single franking on letter from "1" - Aachen (government Bez. Aachen) with alongside single circle postmark "AACHEN 6 7 N 11-12" (Münzberg unknown) on cover to Frankfurt/Main, faultless choise copy condition, photo expertize Brettl International Association for Philatelie Experts (2014) : "perfect condition. Letter from known correspondence with scarce two-circle cancel "AACHEN N", which in the Münzberg unlisted is. ", ex. Collection Metzer.