6 Pes. 25 cts. Thin overprint type I on 5 Mark in perfect condition unused with the very rare plate flaw \"dot in the \"I\" of imperial post, photo expertize Dr. Friedrich F. Steuer VÖB: \"has an authentic \"thin\" overprint. Is unused and has a treated gum with a hinge trace under the upper margin. \" already the scarce \"normal\" 19 I / II appraises 2.000.- Euro. With the plate flaw probable unique!