1 / 4 Ggr. / 3 Pfg. Black on pale brown on cardboard paper, centric cancellation black number postmark "9" Brunswick railway station and additional blue box cancel of 2 lines "Brunswick", having full to wide margins, slight vertical crease right, visually impressive piece the very rare - hardly once offered - paper variety, associated with the duplex cancellation especially attractive, expertized Esser and new photo expertize Dr. Wilderbeek BPP (2020), Michel 500.- ++ ++