Watch List notes:

Commodus (177-192), Denarius, Rome, AD 181; AR (g 3,50; mm 20; h 6); M COMMODVS AN - TONINVS AVG, laureate head r., Rv. TR P VI IMP IIII - COS III P P, Providentia standing l., holding wand over globe and sceptre. RIC 19; C 804.
Iridescent tone, extremely fine.