Watch List notes:

Constans (337-350), Nummus, Siscia, AD 337-340; AE (g 1,69; mm 16; h 12); CONSTAN - S P F AVG, diademed, draped and cuirassed bust r., Rv. GLOR - IA EXERC - ITVS, two soldiers facing, heads turned towards each other, each holds spear and shield; between them, one standard; in ex. ASIS (crescent). RIC 93.
Green patina, about extremely fine.