75 penny Germania, black blue green / yellow black with blue hand stamp overprint \"C. I. H. S. \" in the horizontal corner margin pair lower right (field 99 / 100), variety \"left stamp without overprint, right stamp with double overprint\", mint never hinged, faultless condition, extremely rare, signed Mikulski, photo expertize Dr. Weinberg BPP and photo expertize Gunnar Gruber BPP \"genuine and in perfect quality. \"