Agreement and supplementary exchange of notes between the United States of America and Turkey respecting reciprocal trade. Signed at Ankara April 1, 1939; proclaimed by the President of the United States April 5, 1939; effective provisionally May 5, 1939; ratified by the Grand National Assembly of Turkey June 20, 1939; ratification by the Grand National Assembly of Turkey notified to the Government of the United States of America September 9, 1939; President's proclamation communicated to the Turkish Government November 20, 1939; effective definitively November 20, 1939; supplementary proclamation by the President of the United States November 30, 1939.