The same process that created our best selling Coventry® line of Pavers and Retaining Wall Systems is now available in a mortared wall application. Split and tumbled, modular architectural veneer units GloucesterStone is installed as a wet lay (full bed and head joints), vertical masonry application. Installed primarily in new commercial/residential/institutional construction using a 4" brick shelf, this product can also be used in retro-fit applications.