AES PREMONETALE. Aes Rude. Unform cast bronze fragment. Central Italy, 8th-4th century BC. Vecchi ICC 1. TV. pl. 2. AE. g. 246.20 R. About mm. 67x41x39. Untouched earthen green patina. Aes Rude weights are most irregular, ranging from 8 g. to over 300 g. Our specimen is a particularly heavy example; it has about the weight of a libral as.