Not a big fan of the Sol standing type, but this one I couldn't let pass:
CONSTANTINE AE19mm 3.18g Follis/Nummus (VF+, patina)AV: CONSTANTINVS MAX AVG COS IIII; laureate, wearing trabea, holding globe in r. hand bust l.
REV: SOLI INVIC-TO COMITI; Sol stg. l., chlamys across l. shoulder, raising r. hand, globe in l. hand. TF in left field, star in right field.
EXE: PLG, Lugdunum mint.
REF: unlisted in RIC VII for obv. legend and bust type; should be after RIC VII Lugdunum 37, unlisted in Bastien, 315AD.
This coin confirms another example, noted in NOT IN RIC (
http://notinric.lechstepniewski.info/7lyo-37_m2l.html), although tentatively recorded as having a different obv. legend MAX P COS IIII instead of MAX AVG COS IIII. Extremely rare, 2nd known example.