Revolutionary War veteran

Obil Beach is a Revolutionary War veteran. His gravestone has an open Bible carving, but a Revolutionary War plaque covers most of it. From a gravestone preservation point of view, I would have preferred to see the plaque mounted on a stake beside the stone.

Many gravestones in this cemetery have had restoration work—did something go wrong with this one? Dark, light, lighter?

OBIL BEACH
DIED
Oct. 5, 1846.
aged 88
years
From Year-Book of the Ohio Society of the Sons of the America Revolution, (1898) we learn a bit more detail from an entry for his grandson, Dr. John Noble Beach:

Erected by his descendants

Darby Township Cemetery, Madison County, Ohio