This original Overseas Flight Certificate dated May 15th, 1950 and signed by Captain R.B. Keeton, certified that a Mr. Henry W. Locke flew on that day from Frankfurt to New York on American Overseas Airways, Flagship Amsterdam.
A little research has revealed that Flagship Amsterdam was a Lockheed L-049 Constellation which started service in 1946. In those days, international flights for American Overseas Airlines were routed through New York, arriving and departing from La Guardia airport! Please Click On Item For A Closer Look!