Watch List notes:

Magnentius. AD 350-353. Æ Double Centenionalis (23mm, 7.00 g, 6h). Ambianum (Amiens) mint. 7th phase, struck January-August 353, 1st reduction. Bareheaded, draped, and cuirassed bust right / Large Christogram; A ω flanking; AMB(?). Cf. RIC VIII 39, 41, 43-4; cf. Bastien 139, 141, 143, 145. VF, brown patina, compact flan.