These bayonets were manufactured in 1942 and 1943. They are virtually identical to the US Model 1905 and the arsenal refurbished bayonets designated the US Model 1905/42. These bayonets were intended to be used on the Springfield 03-A3 and the M1 Garand Infantry Rifles.

This particular bayonet was manufactured by Union Fork & Hoe (UFH) in 1942.

These bayonets were made to less exacting standards, and generally the blades are a bit shorter than their predecessors (~15-3/4" as opposed to ~16").
The grips are black plastic; blades were Parkerized. The blade is steel, single-stopped-fuller (both sides), single-cutting-edge with short false-edge towards the tip.
Blade ricasso is stamped with the maker - in this case UFH - over ordnance bomb flanked by U on the left and S on the right, over either 1942 or 1943. This one is stamped 1942; on the opposite side is an unknown logo or trademark and this stamp has appeared on all examples I have encountered.

Scabbards are green "plastic" but more accurately classified as fiberglass; sheet-steel throat displaying US centered in ordnance bomb logo.

Please Note: These are currently being reproduced and offered by various distributors. Beware of these being offered as originals by secondary sources.