the edge of a roof might be embellished with plaques called antefixes, as mentioned above, and some pottery relief "revetment" panels with figurative scenes for setting into walls emulate the marble friezes of grand temples. these are still often called "campana reliefs", after giampietro campana, the 19th-century italian scholar and collector who first studied them. they were developed from about 50 bc and were used almost entirely in italy between tuscany and campania – areas once in the ambit of the etruscan culture of which they seem a continuation. initially used on small temples, they are later found on a wide range of public and private buildings. usually between 22 and 50 cm high and 27 to 48 cm wide, plaques were perhaps typically arranged in bands or friezes. subjects are usually drawn from mythology. they cease to be found after the middle of the 2nd century; they had to compete with moulded stucco as well as wall-paintings.