Highway Post Office - a motorized bus-like vehicle used by the Post Office. As it traveled along a route connecting a number of post offices, mail would be picked up, sorted and delivered (to post offices, not individual customers).
Highway Post Office (HPO): Portable mail-handling equipment for sorting mail in transit on highways (normally by truck). The last official U.S. HPO ran June 30, 1974.
Highway Post Office (HPO) - Portable mail-sorting equipment for mail in transit on highways. Hinge - Piece of glassine or parchment paper used for mounting stamps on album pages.
Highway Post Office Service - a mail distribution network. To compensate rural communities for the loss of Railway Mail Service, the Post Office Department inaugurated Highway Post Office (HPO) Service on February 10, 1941. President Franklin D.
Highway post offices were established in 1941. They were discontinued in 1974.
Highway Post Office. The Post Office sorted mail on special motor vehicles in transit between cities. This system was in use from the late 1930s through the mid-1970s. FDCs were occasionally cancelled with HPO markings. [Back to top] IA ...
The First Highway Post Office, by James H. Bruns; Mobile Post Office Society Here's another of Jim Bruns' excellent works on postal vehicles, this time the HPO buses and their development on the line from Washington, DC to Harrisonburg, VA.
Highway Post Office (HPO): motor vehicles used for collection, sorting and distribution of mail operated by U.S. Post office between Washington, DC and Harrisburg, Va in 1941. Hiiumaa: bogus issue, not valid for postage.
These highway post office (HPO) vehicles were initially intended to supplement RPO service, but in the 1950s and 1960s, HPOs often replaced railway post office cars after passenger train service was discontinued.
Some hand stamped cancellations are added onto the mail during transit. Letters that have highway post office cancellations passed the scrutiny of the mail sorting equipments.
See also: Used, Stamp, Trans, Postmark, Cancel
 
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