Watch List notes:

ROMAN EMPIRE: Caligula, 37-41 AD, AE quadrans (3.30g), Rome, 39-40 AD, RIC-45, pileus flanked by S-C, C CAESAR DIVI AVG PRON AVG // RCC, PON M TR P III P P COS TERT, brown patina, slight roughness, VF-EF, ex New England Rare Coin Auctions March 1982, Lot 70.

Estimate: 60-90 USD