Watch List notes:

Constantine I (306-337), Nummus, Treveri, AD 310-313; AE (g 3,68; mm 23; h 6); CONSTANTINVS P F AVG, laureate, draped and cuirassed bust r., Rv. SOLI INVICTO COMITI, bust of Sol r., radiate and draped, seen from rear. RIC 893.
Rare, green patina, extremely fine.