I think it is a repro. The arsenal mark is not quite right, is not deep enough and is in the wrong place. Also, bayonets with the hook guard were pre-WWII and are generally much better made and finished. Am I sure? No, but I would be very skeptical if I were offered that bayonet.
FWIW, there was no "Type 99" bayonet; the Type 30 bayonet was issued with the Type 30, Type 38 and Type 99 rifles, although many manufacturing steps were skipped on late (WWII) bayonets for faster production.
Jim
|