Image of the feature "III. Exterior Features: 3. Exterior Decoration: d. Miscellaneous: Keystone" at Ferns.
by Tessa Garton.
Reused centripetal voussoir, with one tooth of lateral chevron on the face (three rows, thin roll, thick roll, hollow, thick roll). The soffit is not visible (or not preserved) but there are traces of what may be point-to-point chevron at the lower edge of the face.