Watch List notes:

Anonymous Cast Æ Aes Signatum (Sextans). Italian mint, circa 500-300 BC. Scallop shell / Blank. Cf. ICC pl. 90, 4. 42.99g, 33mm. Good Very Fine. Casting hole to rev. Rare. From the Andrew McCabe Collection; Purchased from Mike Vosper, 2006. Andrew McCabe notes that "this was moulded from the shape of a pecten shell and may, along with the weighed 1lb and 5lb bars, form effectively the first Roman or Latin coins from the 6th, 5th or 4th centuries BC. It's weight amounts to what would later be a sextans, and it is of interest to notice that Rome, and ultimately it's Spanish colonial coinage, used the cockle-shell as a mark on the Sextans denomination in much later times."