There is a discrepancy between my brother and I. We have both attributed his new AE differently. We thought we would post a photo without any info aside from weight and diameter to see what you guys come up with. 24.8mm 12.33g
AE Dupondius, Rome mint: 156-157 AD. Obv.: ANTONINVS AVG PIVS [PP IMP II]; radiate head right. Rev.: [TR POT XX] COS IIII; Jupiter, naked, standing left, holding thunderbolt and scepter; S / C. RIC III, 968 (p. 145).
He was convinced the coin was COS III - I told him the 4th "I" was off the flan but the edge of it still visible. He also wasn't set on the thunderbolt in hand and was disappointed that your/my attribution wasn't listed on wildwinds. Many thanks John.
RIC does not list any dupondii that exhibit the Jupter standing reverse during the years of COS III. So going just by RIC, it must be COS IIII. That is clearly the Roman portrayal of Jupiter standing, even though the thunderbolt is a bit muddled. Send Dane at Wildwinds the image and attribution - she'll be happy to post it.