Ax Maker?

Can anyone identify who made this ax?

I am looking for background information on an ax that I acquired a few years ago. The previous owner knew little of the ax’s history.

The head appears to be cast steel, has a rectangular poll, diamond-shaped ears, an elongated tear-drop eye and what looks to be a combined “M” and “R” touch mark on the left face.

The head weighs about 10 ounces, is 4 5/8 inches long and has a 2 1/2 inch bit. Any help would be greatly appreciated.

Thank you,

Denny

dennis@dennisneely.com