
I can't find this specific hammer anywhere online, does anyone know what it's called or used for?

I can't find this specific hammer anywhere online, does anyone know what it's called or used for?
Looks like a run-of-the-mill blacksmith's or stone sledge that someone has customized for a particular purpose.
To me it looks like a farrier's hammer , long nose with a claw designed to twist off the nail. I have several but the hole at the base of the claw would need to be tapered. I like the ones that twist to the side as they are easier to twist off the nails ( I only do emergency shoes can't have a lame horse on a long ride because it threw a shoe).
Custom. Closest is a mash hammer of stone buster but the cut isn't something I've seen.
Even google's coming up short for me so I'm going with custom mash hammer.