Thanks all for the extra info - very much appreciated. The odd thing is I see no evidence on outside faces of a weld mark or grinding, but I see small cavities
and evidence of something being done. I handle a lot of antiques, and nothing about this suggests it was done very recently. It was very well rusted when I got
it, so what you see is result after I took a wire cup wheel to it to clean it up.
The sides have very consistent texture from top to bottom which does not seem to make sense if the upper portion was perimeter welded on later, but again, I
will defer to more expert opinion on that.
That is why I thought maybe it was re-forged somehow.
Is it possible that it was just made this way?
Last: I took a large 1.5 inch ball bearing and the result was less than spectacular ;0) I have owned several other anvils and the ball bearing test was
poor at best!