Auction 321 - 332 Europe & Overseas Asia / Africa, Europe A –Z, Collections & Accumulations - Day 4

Airmail 1918/19: Proposed 2 fr. stamp for the Orient Flights from Constantinople to Bucharest and thence to France by Train, an unused imperforate sheet marginal block of four "Poste Avion en Orient", on thin white paper with margins all round, fresh and very fine. Extremely rare in a multiple (the Bill Robertson collection, Corinphila sale 186, May 2014) contained just a single example. Signed Kessler.