Airborne - AB 
Air Force Reserve - AF 
Army Reserve - AR 
AMVETS - AV 
Coast Guard - CA/CR 
Combat Veteran - CI 
Congressional Medal of Honor 
Civil Air Patrol - CP 
Tin Can Sailors - DD 
US Army Retired - GI 
USMMA - KP 
Leatherneck - ML 
Merchant Marine - MM 
Marine Reserves - MR 
Navy Cross - NC 
Navy Reserves - NR 
Prisoner of War - P 
Purple Heart - PH 
Pearl Harbor '41 - PH 
Air Force Retired - RA 
Silver Star - SS 
Silent Service - SS 
Vietnam Vets - VV 
Veterans of Foreign Wars 
1979 Sample


Note the serif on the "P".
1979 Base

1980's Sample


Later issue - wider "P" - no serif.
1980's Base

1992 Sample

1992 Base

Multicolored Medal
1992 Base

1992 Base VANITY

AVERY SAMPLE

2003

2003

2005
2005 VANITY
3M2 SAMPLE