Watch List notes:

Constantius Gallus caesar, 351 – 354. Solidus, Nicomedia 351-354, AV 4.66 g. D N FL CL CONSTANTIVS NOB CAES Bareheaded, draped and cuirassed bust r. Rev. GLORIA – REI – PVBLICAE Roma seated facing, holding spear in l. hand, and Constantinopolis seated l., holding sceptre in r. hand and resting foot on prow, both supporting between themselves a shield inscribed VO / TIS / V; in exergue, SMNB. C 24. RIC 75. Depeyrot 5/3. Biaggi 2208 (this coin).
Very rare. Minor marks on obverse and a scuff on reverse,
otherwise good extremely fine

From the Biaggi collection.