This coin appears to have been damaged or double struck. There are some letters high on the Reverse that look like they don't belong. And some of the detail is missing or distorted. There is a view of the entire coin Obverse and Reverse and close ups of the suspect area. Constantine AE2. AD 313-314. IMP CONSTANTINVS PF AVG, laureate, draped and cuirassed bust right. / SOLI INV-I-CTO COMITI, Sol standing left, holding globe and raising right hand. R-F across fields. Mintmark R star T.