1929 (16 July). Airmail flights. GB - Greece. London - Wien (19 July) - Ithaca (21-23 July). Multifkd UPU issue env 5 1/2d rate air cachet taxed. Transits on front reverse. Interesting.
1931 (8 May). UK, airmails London - Canada, Montreal. Fkd env 2 1/2d blue combined sea Air service. Air cachet. Fine.
1938 (12 Dec). Netherlands - South Africa. Special flight. Mixed countries multifkd env massive S Africa usage.
1922 (1 July) Argentina - Uruguay. Special flight.
1926 (15 Sept) USA. Seattle - LA route. Air fkd env + cachet. First flight.
1926 (31 May) USA, Denver. First solo flight. Comm cachet.
1926 (18 June) Argentina - Uruguay. Airmail early fkd envelope.
1926. Argentina. Córdoba - Rio Cuarto. First flight 5c red stationary. Fine early special flight.
1927 (Dec 17) USA. Chicago - Cincinnati. Air flight. Cacheted env.
1927 (13 Dec) HAITI - Dominican Republic. First flight. Air multifkd envelope.
1928 (Aug 1) USA. Helena, Montana - Salt Lake City, Utah. First cacheted flight air VF.
1928 (Dec 1) USA. First flight. Nashville, Tenn - New Haven, Conn. Chicago - Athlantic route.
1928 (29 Aug) CANADA - USA. First flight. Nice usage. Special cachet.
1929 (6-10 Aug) USA - Germany. Round the World flight. Fkd stat envelope + adtl. Fine.
1930 (Oct 25) USA NY - LA. First flight. S. Louis - Pittsburg branch. Fkd + cachet env.
1930 (30 July) Bolivia - Brazil (1 Ago) Lloyd aereo. First flight. Multifkd envelope. Very fine.
1936 (11-14 May) USA - Germany. Zeppelin Comm. Cachet. Fkd envelope.
1937 (23 Nov) Scotland - Shetland Islands. First flight to USA. Special mins cachet.
1938 (21 Dec) Germany - Brazil (25 Dec) German airmail + arrival free censorship. Air multifkd envelope. Interesting item.
1938 (14 Nov) Marruecos French - TUNISIA (15 Nov) First flight. Fkd envelope + cachet.
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