Watch List notes:

Magnentius (Usurper, 350-353), so-called "Maiorina", Rome, AD 351-352; AE (g 5,93; mm 24; h 6); IMP CAE MAGN - ENTIVS AVG, cuirassed and draped bust r., Rv. VICTORIA AVG - LIB ROMANOR, emperor standing r., holding standard and olive branch; at feet, captive; in ex. R P. RIC 177.
Traces of silvering, exceptional preservation, probably the best specimen known, extremely fine - good extremely fine.