See also: Keystone in Pictorial Dictionary of Heraldry.
4 Entries • Display: Details | Items
A tapered stone used at the center of an arch.
Default orientation: wide edge to chief. Proper coloration: grey stone.
Keystone (1) §
Keystone (2) §
Keystone (3) §
This version with notched upper corners is considered a Step from Period Practice (SFPP).
Keystone (4) §
Source: Armas de los Condes. Artist unknown. (Folio 114.)