Maker identification markings were required by Ordnance, and appear vertically oriented on the left ricasso. Initially each marking was to include the initials of the maker, the Ordnance Shell and Flame flanked by the letters U.S. to show that the bayonet was US Property, and the date of manufacture.

Identify if the bayonet is original, a fake/reproduction or fantasy. Refer to the "Fake, Reproduction or Fantasy" guide in Resources below. Measure the blade length and not the length of the whole bayonet. For better identification, provide clear photos of bayonet with the sheath removed and the whole blade exposed.