Watch List notes:

ANCIENT COINS, ROMAN, Mint of Rome unless otherwise stated, Q. Antonius Balbus (83-82 BC), Silver Denarius Serratus, laureate head of Jupiter facing right, S•C behind, rev Q ANTO BALB / PR in exergue, Victory in quadriga right, holding the reins, a palm-branch and a wreath, control-mark R below horses, 4.00g, 7h (Cr 364/1d; Syd 742b; RCV 279). Attractive iridescent cabinet tone, extremely fine.
from the David Sellwood Collection

Estimate: £150-200