Keystones are the masonry pieces that sit at the top of an arch. Often times these are oversized or decorative.
The keystone in the arch below is in a Roman style arch and is built with a Roman Style brick.
Keystones are the masonry pieces that sit at the top of an arch. Often times these are oversized or decorative.
The keystone in the arch below is in a Roman style arch and is built with a Roman Style brick.