The author of RIC, Patrick Bruun, mentions this coin in the footnotes-- "Some coins not with star but with dot in exergue, the dot most likely intended for a star." He noted examples from every workshop except B; which Speck and Huston in Constantine's Dafne Coinage noted a coin from officina 'B'. So, these coins are known from all the workshops and must be a separate issue after RIC VII Constantinople 38
Over the years I have even had examples from each workshop, though this is my only current one; but it is much nicer than the others.
Constantine I
A.D. 329 -330
20mm 3.5g
CONSTANTINVS MAX AVG; rosette diademed, dr. and cuir. bust right.
CONSTANTINIANA DAFNE; Victory seated l. on cippus, palm branch in left hand and laurel branch in right hand, looking r.; trophy at front, at the foot is a kneeling captive with head turned being spurned by Victory; B in left field.
in ex. CONS•
RIC VII Constantinople –