RIC does not list a draped and cuirassed bust for Constantine with this obverse legend, it should come before RIC VII Lyons 128. It’s not listed in Bastien either.
Constantine I
A.D. 321
18mm 2.6gm
CONSTANTINVS P AVG; laureate, draped, and cuirassed bust right.
BEATA TRANQVILLITAS; globe set on altar inscribed VO/TIS/XX; above, three stars. C R in fields.
in ex. PLG
RIC VII Lyons--