Airplane
Argentina, Cover
1951. FDC BUENOS AIRES 21 DEC 50.
USA, Cover
1930. FIRST FLIGHT CANAL ZONE TO COSTA RICA. CHRISTOBAL JAN 1 1930. Scarce.
USA, Cover
1929. FIRST USA AIR MAIL CANAL ZONE - CHILE. MIAMI MAY 14 1929. + CRISTOBAL MAY 16 1929__ + LEGACION DE BOLIVIA QUITO. 5X 5 CENTS INTERNATIONAL CIVIL AERONAUTICS CONFERENCE.
Michel 214, Issued without gum
MAROC. 1945. Luftpost 50 Fr. LUX. Atelier de Fabrication des Timbres-Postes. Paris.
Mint never hinged
1932. III FIKPROK BUDAPEST 1932. V. 5 – 16 RÉGI MÜCSARNOK VI., Andrássy-ut 69.