Recall asking a family member once who had cut some stone figures for churches, as well as cutting a life-size cocker spaniel dog with wavy hair, how he knew how and where to cut the stone. He said, “You just cut away what you don’t want.”
I think the carving is too deep to make a rubbing, but I don’t really know too much about rubbings. It’s a good inch or so deep from the surface. It only occurred to me after I posted it that the profile picture that’s currently showing (which is Chalky) has him in an almost identical pose!