Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Poland - MAINLY PIONEER FLIGHTS COLLECTION ON PAGES: 1921-48, 15 postal history items and 20 stamps, starting with Poznan - Warsaw Flight cover from Poznan Exhibition of 1921 and set of two stamps, Pioneer Flights Warsaw - Lwiw and Lwiw - Warsaw of 1926-29, cover from Poznan to Chicago via Berlin and Warsaw to Vienna of 1927, Poznan - Gdansk of 1929, multi-franking on Katowice - Warsaw - Germany cover of 1929, L.O.P.P. (Air and Gas Defense League) single stamps, blocks and stamps on covers, F/VF, Est. $600-$700