[Huh? What?]

The top one is a tomahawk head I found about ten years ago while hiking here in Arizona. The bottom is a knife blade a friend gave me. I know nothing about either one. The tomahawk head is, of course, merely decorative due to condition. The knife blade I intend to finish and carry.

[neophyte]

Huh? What?: Sir, interesting . You will have fun finishing the longer one Do a pictorial as you progress.
The tomahawk has some years; the picture show welding making it more modern day
I can't begin to imagine the purpose Follow-up with any other info

[Huh? What?]

I have no info on the tomahawk at all.

[chesterwin]

Increasing the image to 400 percent, the tomahawk head appears to have an indented surface between the handle opening and blade. It's difficult to tell if it was forged that way or maybe filed. It may have been used to tie a strap around for carrying. It doesn't appear at higher magnification to be a weld mark.

[Huh? What?]

I had someone on another site say it is a weld mark, but I don't know.

[Cyrano]

Better photos are required before we can help you. There are different sorts of welding. If the tomahawk was forge-welded, that would mark it as much older.

[Huh? What?]

Ask and ye shall receive...

Better pictures of the area...

[JDubia]

From the last photo, I am wondering if the ax was made from an old wood splitting wedge. The hole for the handle looks like it was punched out cold. Usually one that was punched while hot would be smoother. My 80 YO dad, just today, gave me one of his old knives that he said that he could not finish.

[neophyte]

Huh? What?: Sir, very good pictures now I'm completely at a loss
JDubia may have the answer.

[Cyrano]

It definitely wasn't arc-welded. Looks too sloppy to have been done with a torch and a rod, and there are spots that look to me as if someone attempted to peen the welds. I think that's an old, handmade tomahawk.

[Huh? What?]

If so, that's nice, since I found it.