David Neufeld builds authentic brick ovens much like those used for centuries all over the world. Custom designed to compliment both the entertaining environment and the cook's propensities, these ovens hold heat for up to three days on one firing with a small quantity of wood. Visit his website at: www.truebrickovens.com
All my brick ovens have a face arch. To create a sense of symmetry, I often match-book the stone. This is done by cutting the arch stone in half, front to back, and using the two halves in opposite locations on the arch.
A recent oven finished on the entire exterior with reclaimed cobblestones (likely about 150 years old), incorporated a match-booked stone face.