Circa 100 AD. The Romans made fired clay bricks, and the Roman legions, which operated mobile kilns, introduced bricks to many parts of the empire. Roman bricks are often stamped with the mark of the legion that supervised their production. The eleventh legion was a legion of the imperial Roman army. The legion was levied by Julius Caesar for his campaign against the Nervii.Size: L:70mm / W:110mm ; 360gProvenance: Property of a Cambridgeshire gentleman; previously in a 1990s collection.