4 Pfg posthorn with left upper corner of the sheet and printer sign "7" neg (LOC. 2 a), centric cancellation "SINDELFINGEN (WÜRTT) 05.5.52", faultless, decorative piece with the good printer sign, superb in every respect (choice copy), photo expertize H. D. Schlegel BPP (2018) "stamp and postmark are genuine. The quality is perfect. " (without any restrictions! )