6 Kr. Medium blue, with clear Taxis single circle postmark "FRANKFURT A / M. Railway station. 5 / 7" (1867) on piece, expertized Georg Buehler, photo expertize Pichl (10 / 2019) "right above marked be on the stamp a small dirt adhesion, otherwise is they be in good, having bright colors quality and shows on all sides complete roulette with usual perforartions course"