Watch List notes:

Constantine I BI Nummus. London, circa late AD 309. IMP CONSTANTINVS AVG, laureate and cuirassed bust right / MARTI CO-N-SERVATORI, Mars in military dress, standing right, holding spear and shield; PLN in exergue. Unpublished in the standard references, for general type cf. CT 6.01.001-2 and RIC 107. 3.36g, 21mm, 6h.

Extremely Fine/Very Fine. Extremely Rare.