United States Postage Meter Stamp Catalog/GROUP OA – Official Armed Forces government business mail franks

GROUP AR: Meter stamps used by the Armed Forces
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 * Group OA describes "OFFICIAL MAIL" format meter stamps used by the military for official business formerly listed under "Group OO".


 * Such stamps have town marks that contain "APO" (Army Post Office) or "FPO" (Fleet Post Office) or are mailed from Zipcodes that are known APO or FPO zipcodes.


 * Also included are meter stamps that have the name of a U.S. Navy ship in the town mark. These stamps are from meters located aboard ship.


 * Additionally any "OFFICIAL MAIL"meter stamp with "NAVY", "ARMY", "AIR FORCE", or "MARINE" referencing the armed services is included.


 * There are eight sub-groups based on the branch of the armed services using the meter. Click on those you want to see:


 * • Sub-group OA-NAV –  U.S. Navy 
 * • Sub-group OA-ARM –  U.S. Army 
 * • Sub-group OA-AIR –  U.S. Air Force 
 * • Sub-group OA-MAR –  U.S. Marine Corps 
 * • Sub-group OA-APO –  overseas Army and Air Force Post Offices 
 * • Sub-group OA-FPO –  overseas Navy and Marine Fleet Post Offices 
 * • Sub-group OA-NGD –  National Guard