Watch List notes:

The Roman Empire
The Civil Wars, 68 – 69

Denarius, Gaul, March-May 68 AD, AR 3.61 g. MARS – VLTOR Helmeted and draped bust of Mars r. Rev. Aquila between two standards, altar to r.; in field, P – R and in exergue, [SI]GNA. C Galba 406. BMC Galba 39. Martin 60. RIC 51. CBN 18.
Very rare and in exceptional condition for the issue. Struck on unusually fine
metal and with a wonderful iridescent tone. Extremely fine

Ex Antiqua sale XII, 2003, 134.

This issue is related to the effort of Vindex to displace Nero in 68. Vindex is said to have amassed a following of 100,000 soldiers. The type here, as is common during the civil war, is a recreation of an earlier denarius of Augustus using the Mars Ultor motif. MSG.