Watch List notes:

Staff and club series. AE Semuncia, c. 208 BC, Central Italy. D/ Head of Mercury right. R/ ROMA. Prow right; in upper left field, on side of corvo, staff. Cr. 106/10 var. (no staff, mark of value Σ on reverse). Cf. Triton sale I, 954, ex Goodman Coll. listed as the only known semuncia with the staff on the reverse. AE. g. 3.05 mm. 17.00 RRRR. Of the highest rarity and in excellent condition for issue. Deep brown patina. Good VF.

An apparently unpublished variety.