Air transportation for other than airmail. Hearings before the Subcommittee on Post Office of the Committee on Post Office and Civil Service, United States Senate, Eighty sixth Congress, first session, on S. 2402, a bill to clarify the authority of the postmaster general to provide for the expeditious, efficient, and economial transportation of mail, and for other purposes. July 24, 27, 31, August 3 and 4, 1959 ...

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