Watch List notes:

Sex. Julius Caesar. AR Denarius, 129 BC. Helmeted head of Roma right; behind, anchor; below chin, X. / ROMA. Venus in prancing biga right, crowned by Cupid behind her; below horses, SEX.IVLI; in exergue, CAISAR. Cr. 285/1; B. 2. AR. 3.87 g. 17.00 mm. R. Rare. Brilliant and unevenly toned. VF.

The reverse relates to the origin of the Julia gens, which claimed descent form Julus, the grandson of Venus and Anchises, and the founder of Alba Longa. (RSCI, p. 53).