50 pfennigs, dark brown red on light grey brown, 90. birthday Prince regent Luitpold, with punched "E", in type I, unused with rest of hinge and original gum, excellent condition, negligible creasely, left at the bottom two perforation shortened, original perforation from field 5 of the perforating tool, unsigned, photo expertize Joseph Bauer BPP (2024), Michel 2.500.-, official stamps of this denomination value in type I are rare!