keywords: u.s. mail transportation, post office department, postmaster general, u.s. mail airplane
Synopsis: Operation of the United States Post Office Chicago mail terminal in the 1930's. Shows the operation of various sections of the Chicago Mail Terminal, particularly in handling parcel post. Emphasizes how the mail is moved through the sections. Mail carriers or postmen leaving the Chicago Mail Terminal with mail bags on their shoulder. Sorting of parcel post packages by hand.