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