25 Pf dark orange unused with inverted overprint and plate flaw II ("I" in "Reichspost" above cleaved), signed Hille and Rohr, as well photo expertize Dr. Hartung: "originals gumming with stronger traces unfolding, fresh colors. Few short perfs above and at the bottom, reverse a small rubbed spot and reverse a little having mould stains. " the plate flaw comes only twice in the sheet before and there only a sheet printed was, can at a max two pieces existing, so that it be to all the years probable an unique piece act! The "normal" inverted appraises Michel 2800,--. For the plate flaw lets be naturally no Michel value indicate.