Circular Aes Rude. ; Circular Aes Rude; Italy, 8th-3rd BC, Haeberlin pl. 2.1. Circular aes rude, 14-15 cm, 2.60 kg, c, 4.5 Roman pounds. Cast copper disk, mounded obverse, thickening toward center, flat reverse, rough surfaces.Perfectly round and domed center. Earthen surface with green patination beneath.