Hello everybody. I was looking for a bayonet for an old trench gun ive had for about ten years and have come to beleive it may be collectable. It is a four digit serial beginning in 7 and has UNITED STATES PROPERTY and stamp GHS and then a P on left side of receiver. Opposite to ejection port. The barrel is stamped with PROOF TESTED 12 GAUGE 2 3/4740 INCH CHAMBER then below HI-STN RIOT. It has a perforated heat shield and bayonet lug for the 17 pattern sword bayonet. Parkerized finish with logical wear . I beleive this nug to be a model 620 A but who knows. Any help would be wundabar
