2 1/2 Dollar imperial yacht, war time printing, 26 : 17 perforation holes, with retouching \"cloud\" between the guys of the first mast (field 6, 8), only in a late part of issue occurring, so far only a few copy known, unsigned, photo expertize Jäschke Lantelme BPP (2020) : \"in mint never hinged condition and shows except for a climatic brown stains on stamp right, no further defects. \"