Transportation of foreign mail by aircraft.
Subtitle: Hearing before the Committee on Post Offices and Post Roads, United States Senate, Seventy-sixth Congress, third session, on S. 4137, a bill relating to transportation of foreign mail by aircraft.  Wednesday, June 19, 1940.
Publisher: U.S. Govt. Print. Off.
Published: 1940
Place of publication: Washington
Language: eng
Subjects: Air mail service -- United States.
Notes: Available also in microform in CIS US congressional committee hearings, accession number (76)S628-8.
Printed for the use of the Committee of Post Offices and Post Roads.
Kenneth McKellar, chairman.