| WWI-Era U.S. Army Collar Disk |
| U.S. Army Brass Collar Disc Disk Crossed Cannons |
| Nice WW1 era U.S. Army Artillery Collar Disk Insignia! |
| ARMY AIRCORPS COLLAR DISK/PINBACK |
| WORLD WAR I STUDENT ARMY CORPS BRONZE COLLAR DISK |
| Nice WW1 era U.S. Army Signal Corp Collar Disk Insignia |
| WW2 US Army collar disk clutch back posts NR |
| WWII US Army Air Corp Collar Disc Set - Disk USAAC |
| U.S. ARMY WW II QUARTERMASTER CORPS OFFICER COLLAR DISK |
| U.S ARMY COMMAND SERGEANT MAJOR COLLAR DISK |
| WWII US Army Infantry K Collar Disk Screwback |
| WW2 US Army Armor Corps collar disk Screw Back NR |
| U.S. ARMY WW II FIELD ARTILLERY ENLISTED COLLAR DISK |
| U.S. ARMY WW II TRANSPORTATION CORPS COLLAR DISK |
| ARMY AIRCORPS COLLAR DISK/PINBACK |
| U.S. ARMY MILITARY INTELLIGENCE COLLAR DISK |
| U.S ARMY WARRANT OFFICER COLLAR DISK (obsolete) |
| Pair US Army Military Collar Disk Pins w/posts & clips |
| U.S ARMY WARRANT OFFICER COLLAR DISK (obsolete) |
| WWI GERMAN ARMY IMPERIAL SILVER COLLAR BRASS DISK |
| Nice WW1 era U.S. Army Signal Corp Collar Disk Insignia |
| WORLD WAR I STUDENT ARMY CORPS BRONZE COLLAR DISK |
| Nice WW1 era U.S. Army Artillery Collar Disk Insignia! |