Not issued: 500 Mark on 5 franc, above adhesive gutter, mint never hinged in perfect condition, small edition from only 150 copies, photo expertize Dr. Egon Norbert Petersen BPP and Tobias Huylmans BPP (2024) "genuine and immaculate", Michel 3.000.- - very scarce and hardly once offerd stamp! In of our 196. Auction obtained an equipollent copy - however without gutter extension - 1.800.- Euro as well percentage of bid price!