2 1 / 2 Heller imperial yacht watermarked, variety \"unperforated\", mint never hinged, faultless condition, unsigned, photo expertize Steuer V+?B \"qualitatively perfect\", the stamp originates from an unperforated original sheet to 100 piece, the from the archive the Federal Printing Office (former Empire printing office in Berlin) 1997 public was auctioned, Michel 2.000.-