Ditto to you Scotty, I'm impressed! Love the large pieces at the base of your fire place.
Our Stone came out of Yonkers Quarry, no longer in operation. My friend Harold knew how to do it, and taught me. Harold's work is excellent. While we were doing it, the guy who sold us the stone (part of the family that owned Yonkers Quarry) brought his brother and father over to see what we were doing, and they offered Harold a job on the spot.
I kinda got into doing it too, Harold got a real kick out of it. We did not have carbide tools, we sharpened out chisels and pitching tools on the grinder a bunch! All done over a long summer, evenings, weekends, and a few weeks of vacation time. It consumed us every day, and I missed bow season that year.