1927-1939 comp. of 5 airmail letters, first flight MANILA-MACAO, MANILA-GUAM (2) with Sc.C52, 53, P.I.U.S. Inicial Flight 35, special flight to MINDANAO "Via Army Sea Plane", letter KLM i.a. with Sc.55, Manila-Madrid 1936, through Singapore to Bohemia-Moravia