I found it at a flea market. $10 with a fairly new handle. I thought through the dirt it was stamped USGI but now that I have wire brushed it I think it says US 01. Rough finish on the top and bottom. Also looks like maybe it is a steel sandwiched in iron, based on how it cleaned up when I sharpened it. Here are the pics.
The edge shines up better than the back area, I'm thinking a composite.
The edge shines up better than the back area, I'm thinking a composite.