1 / 4 Groschen gray violet, small breast shield, having bright colours block of four in a bright shade, cancelled by North German Postal District single circle postmark \"Berlin P. E. 8 N1 18 5 72 7-8 N\" (KBHW 317), three stamps short respectively shorter perforation, the other perfect, photo expertize Krug BPP (2020), Michel 800.-