Proline Decorative Concrete Systems CS500A 36"x 50" Appian Cobblestone Large Stone A. This historic pattern is a replication of the Via Appia, the oldest and most celebrated road built in Italy in 300BC by Roman censor Appius Claudius Caecus. These beautiful cobbles are offered in two sizes- see our Appian Cobble Stone for a smaller scale version of this pattern. Our Appian Cobble Stone stamps consist of an A & B side and include handles. This allows for a more open, less repetitive pattern. As with all Proline patterns, we offer this pattern in a thin-flex mat for finishing edges. The look of Old World Cobble with the durability and endurance of concrete.