5 Mark \"Reich founding commemorative celebration\" in the Kriegsdruckm, variety \"inverted centerpiece\", so far are only a few pieces have become known. The having bright colours, unused stamp with original gum, of the in this condition only two examples existing, is except for a few reperforated perforation, the with this extremely rarely stamp meaningless be should, in perfect quality. Signed Köhler, Pfenniger and Buehler as well detailed photo expertize Jäschke Lantelme BPP (2018). Provenance: 42. Mohrmann auction (1942). One of the largest rarities of the German Empire!