here is an unofficial coin (1st picture below) in pretty good style, though the bust is not as refined as official issues from Ticinum (see the 2nd and 3rd coin for comparison of this bust type and reverse) and RIC only lists coins of Crispus with C on altar. It is also unusual that this bust type is not recorded for this issue. Since this copy exists, I suspect that it was copied from an unlisted example that may surface sometime in the future. 18mm 2.4gm
