60 cent on 50 Mark on 25 C. Dark vermilion, block of four with the overprint types III - III and I - III therefore horizontal type pair included, lower pair mint never hinged, upper stamps unused, left lower stamp manufactured sand grain hole, photo expertize Tobias Huylmans BPP "genuine and immaculate", Michel for single values 1.410.- (there type pairs - . Stand, the vertical variety comes only 3 x in the sheet before, the horizontal 10 x)