1 Mark red watermarked in B-perforation, in perfect condition mint never hinged complete 20s sheet with lying plate number 1 at the lower margin, photo expertize Jäschke Lantelme BPP: \"in faultless, mint never hinged condition (the margin of sheet is left at three places a little separated). \" the B-perforation as complete sheet is surely very rare! Michel 6.400.-