Hello Don,

Haven't used one in a long time. Use to own 3 or 4 of them. When I was apprenticed, I saw them often, (I did most of the sharpening for everyone.) Some folks really liked them, it seemed to be a personal preference, perhaps from who trained them? I used versions of this tool, "fencers ax," for a number of years quite extensively. It was in this same family of axes, one looked more like an adz with very slight swoop, the other a true chisel.

I agree, you don't see much written about them, I have even done some searches in French and German with limited results.

Regards,

jay