5 Mark imperial yacht, war time printing, 25 : 17 perforation holes, retouching \"cloud\" between the holding sides of the first mast\" (field 6, 8), in perfect condition unused with original gum, very rare stamp, photo expertize Jäschke Lantelme BPP (2020) : \"in faultless, unused condition. \", at our house for the first time in supply!