50 Pfg gray green with plate flaw IV inside a horizontal pairs in mixed franking with 5 Pfg violet purple and 20 Pfg dark ultramarine on piece, cancelled \"imperial German postal service agency Shanghai 29 / 4 / 87\", the plate flaw \"missing Tip completion in the ornament middle above\" is rare, toned perforation and smaller legitimate defects, photo expertize Steuer BPP (2021), Michel approximate 1.130.-