Title: Investigation of air mail and ocean mail contracts. Letter from the postmaster general to the chairman of the Special committee to investigate air mail and ocean mail contracts transmitting individual reports and accompanying exhibits on foreign, ocean, and air mail contracts.
Authors: United States.
Publisher: U. S. Govt. print. off.,
Year: 1935
Subjects: Air mail service United States; Postal service United States Foreign mail; Aeronautics, Commercial United States; Shipping bounties and subsidies United States.