Another one: 0.67g and 11mm Here, I don't even know what I'm looking at. I'm seeing some kind of a bust facing right on the obverse, but that's it.
I'm pretty sure it's most likely to be a small nummus from the 5th of late 4th century. Valentinian II, Honorius, Arcadius or close... Some figure (Victory?) standing on reverse if you rotate your last pic 90° clockwise.
I didn't even see the size till now, the pic grabbed my attention you definitely got the bust style. With the 90 degrees on rev I think you got it looks like I see a wing directly under the inscription.
Thank you, all, the bust does look 300-450-ish. I think I'm also seeing some letters on the reverse: IRAV or something. Zoomed out and rotated: