

Diameter: ~ 10.8 mm
Thickness: ~ 1.85 mm
Weight: 1.27 g
From the diadem I've managed to narrow this down to the late 300s and early 400s, but there are many similar matches in this range. Just on Numista, I have isolated these possibilities:
https://en.numista.com/catalogue/pieces122637.html
https://en.numista.com/catalogue/pieces209438.html
I know from Wildwinds.com and a few other sites that there are other similar coins not yet listed on Numista.
Can any of the Roman coin experts here help me to get a more specific identification?
Thanks very much in advance!
Andrew