Heinrich Köhler 383rd Auction – Day 5 Germany 1849–2000 – German Empire, German Colonies with Occupation Issues (G.R.I. and MAFIA), Plebiscite Areas, Germany after WWII – The Erik B. Nagel Collection (part III)

1921, Large Coat of arms 20 Mark proof imperforated, two different in small sheet format (trimmed) on white paper without watermark resp. on normal paper with watermark 2Y, the stamps are mint never hinged, in margin with fold remnants, in good condition, signed Ruberg resp. Kniep BPP