Airmail registered mail franked with buildings number 90, number 106, number 107 as well help for the Needy surtax stamp and airmail stamp with additional imprint DAP on air mail envelope the Conference of the DAPC in Mountain new city from 15.5.1949. Letter with corresponding airmail respectively balloon postmarks. First day use for number 106 and number 107, slight traces of use. Michel 1.000.-