Mail contracts. Further development of American merchant marine and ocean mail contracts, hearing, 71st Congress, 2d session, on H. R. 8361, to further develop American merchant marine, to assure its permanence in transportation of foreign trade of United States, and for other purposes [by amending law relative to ocean mail contracts], and H. R. 9592, to amend sec. 407 of merchant marine act, 1928 [relating to ocean mail contracts], Apr. 12, 1930.

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