Heinrich Köhler 383rd Auction – Day 3 Single Lots: German Empire 1872 – 1945 German Reichspost – Shield Issues – The Michael Rehme Collection (part II)

1936, private postal stationery card airmail 5 Pfg. "Königsberg - 24th German Eastern Fair 1936" with picture "Eingang zur Ostmesse" and with overprint "3. Philatelistische Ostlandtagung" with corresponding special cancellation "KÖNIGSBERG 21.8.38", perfect, very rare, so far without valuation or estimate