Classement

BINGO !!! https://www.facebook.com/Lebaneseancientcoins/posts/monogram-marcianfrom-bronze-nummus-of-marcian-ad-450-457-weight-105-g-nicomedia-/844220207575943/ Martian (Roman emperor in the east of the Roman Empire). Bronze Nummus AD 450-457. Nicomedia mint. weight 1.05 g. [D N MARC]IANVS P F AV[G], pearl-diademed, draped and cuirassed bust right / Monogram (Marcian) within wreath, and from monogram we can read it as his name (M, A, R, C, I, A, N, V, S,) and L)

Merci beaucoup Guillaume, belle trouvaille!