An air mail facility is an installation for airmails of the United States.
This mail was distributed and dispatched to other AMFs via the different flight connections.
Incoming mail from other AMFs was distributed by general scheme and pouched to outgoing RPOs and necessary post offices.
The Motor Vehicle Service provided frequent trips between the city post office and the AMF for air mail ground transportation.
Postal Service (USPS) and are now called air mail centers (AMC).