Original Vietnam era Enlisted Mans (EM) collar brass for Artillery branch. 
Matched set "US" and crossed cannons to denote Artillery corps,
Worn on all class A enlisted uniforms. 
Clutch back, 2 piece construction. 
Size 1 inch. 
Listing is for 1 set of US and crossed cannons.
Stock photos front and back.
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Store use only
Rack 8, Shelf B