Sometimes it's hard to tell between official, Vandal, or anonymous barbaric with these dumpy cross nummi.
This one is clearly just barbarian gibberish.
Scratchy bust right with degraded legend / Cross potent in wreath of lines.
About 9mm and .4g
I wish I knew the provenance. I got about 17 similar coins in 5 lots from the same seller. All had this blue/gray patina, and all were cross or monograms, ranging from Arcadius to Leo.