Postal Service through the years

Published On: Feb 06 2013 08:05:34 AM PST   Updated On: May 01 2013 09:35:15 AM PDT

Check out landmark moments in U.S. Postal Service history.

Postal Dates - Dead Letter Office
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1825: The dead letter office is established to hold "undeliverable" mail like the stacks of tires seen in this photo from 1925.

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