Participation of the United States in the international conference to exempt liquid fuel and lubricants used in civil aviation from taxation, London, February 21–March 1, 1939 1
1. The minutes, documents and official instruments of the Conference are printed in Proceedings of the International Conference for the Exemption from Taxation for Liquid Fuel and Lubricants used in Air Traffic, London, 21st February to 1st March 1939 (London, 1939).
 The Secretary of State to the Delegates to the Conference on Tax Exemptions of Liquid Fuel and Lubricants Used by Civil Aircraft ( Williamson and Kennedy )
[Received January 28—8:20 a.m.]
[Received February 1—1:11 p.m.]
[Received March 2—7:25 a.m.]