Watch List notes:

Constantius II (337-361), Solidus, Sirmium, AD 355-361; AV (g 4,44; mm 21; h 6); FL IVL CONSTAN - TIVS PERP AVG, helmeted, diademed and cuirassed facing bust, holding spear over shoulder and shield with horseman motif, Rv. GLORIA - REI - PVBLICAE, Roma and Constantinopolis seated facing, holding shield inscribed VOT / XXXV / MVLT / XXXX; in ex. palm MSIR palm. RIC 60; C 124.
Very rare, very fine.