One of the most desiderabile coin for a Constantine I collector and a milestone for my collection.
Not in RIC but several specimen known.
IMP CONSTANTINVS P F AVG; bust r., laur., dr., cuir.
LIBERATOR ORBIS; Emperor galloping r. over lion, r. rised. R*P in exergue.
22-20 mm.2.84 grams
congratulations...it's a nice addition to your collection.