Aes Premonetale. Aes formatum. Cocoon-shaped AE cast item, Central Italy, 6th-4th centuries BC. Unlisted in the standard references and apparently unpublished; Vecchi ICC- (cf."Bronze objects found with Aes Rude and early currency bars in Central Italy", p. 76 and pl. 90). g. 44.90 mm. 66.00 RRRR. Very rare and interesting. Earthen light green-brown patina. VF.