Excellent topic and coins. The only one that I have from this period is from Galba, just a bit before be proclaimed emperor, but not considered a civil war issue. I presented in another topic, but here is again: AD 68-69. AR Denarius (17mm, 3.27 g, 6h). Uncertain mint in Gaul (Vienna?). Struck circa April to late autumn AD 68. SER [GALBA IMP], Galba, in military attire, galloping left, extending right hand / HISPANIA, bareheaded and draped bust of Hispania right; two javelins behind, round shield below, two stalks of grain before. RIC I 86 var. (obv. type left & rev. legend counterclockwise); RSC 76a var. (same). (Cited from: https://www.cointalk.com/threads/just-won-this-rare-galba-denarius.301069/page-3)