Watch List notes:

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 Unlisted in the standard references and apparently unpublished; Vecchi ICC- (cf.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). AE. g. 44.90 mm. 66.00 RRRR. Very rare and interesting. Earthen light green-brown patina. VF.