Here's another interesting one you've captured, GiC, and a considerably vintage burial, not that far from three hundred years of age. There's some lichen growth on the stone, but not much; what's catching my eye is the considerable and not uniform oxidization of the stone- but not resulting in the compromising of the headstone's physical structure, beyond cosmetic changes- that suggests a considerable amount of integral mineral or metal content in the original pre-worked stone. Despite that weathering, the carving and basic composition of the headstone has survived this long with the carving we can see (and more that you saw, I would imagine, when you were there in person) still very clear and legible to the naked eye.

The classic, grim-faced Death Angel up top, a classic example of the era's style of carving and reverence of the sanctity and permanence of death.

-2Paw.

Compare to Marcy Brinsmaid (1731) of the same year, which in turn is remarkably similar to Abigail Odell (1736).

John Gaud's style is very distinct.