That looks to be an earlier version of the Cold Steel Vietnam tomahawk—since it’s discontinued then $25 is a good deal. As far as the original Vietnam Tomahawks, there were only 3800 made by American Tomahawk Company in Pennsylvania back in the 1960’s. I have held a few of the originals. When they started painting them green, it was the same paint used on Jeeps—way more drab, no shine to it like the Cold Steel versions. They also spray painted the whole tomahawk—including the bevels. The handles were longer and the ones I held had lanyard holes.