12 88 Pfg reconstruction, proof in red on painted, gray typewriter paper, left unperforated (tenuous paper slight crease), in the horizontal pair with on all sides perforated proof, in perfect condition mint never hinged, photo expertize Dr. Jasch BPP (2017) : "genuine. . . Otherwise is the unit perfect. . . . A gum mat strip is manufactured and places no lack dar. ", Michel 2.250.- - provenance. Collection post senior administrative officer Friedrich Schneider