United States Post Office Department
Government department
The United States Post Office Department was the predecessor of the United States Postal Service, established in 1792. From 1872 to 1971, it was officially in the form of a Cabinet department. It was headed by the postmaster general. Wikipedia
Founded: February 20, 1792
Dissolved: July 1, 1971
Headquarters: William Jefferson Clinton Federal Building, Washington, D.C., U.S
Postal system executive: Postmaster General
Superseding agency: United States Postal Service
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