Postal data by class of mail.
Contributors: United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Operations.; United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Facilities and Modernization."
Publisher: U.S. Govt. Print. Off.
Published: 1965
Place of publication: [Washington]
Language: eng
Number of pages: 25
Subjects: Postal rates -- United States.; Postal service -- United States.
Notes: Cover title.
At head of title: Committee print.
"Prepared for the use of the Subcommittees on Postal Rates, Postal Operations, Postal Facilities and Modernization."