I know this coin is Roman and that’s about it. I have my guess at emperor but wanted to see what others say to confirm my guess. Any help with denomination, mint etc. would also be appreciated!
Severina? IVNO REGINA reverse? What's the size? Reduced Sestertius or As......Maybe something like this?...Pretty rare! Severina (Augusta, 270-275). Æ As - Rome - R/ Juno Severina (Augusta, 270-275). Æ As (27mm, 6.88g, 5h). Rome, AD 275. Draped bust r., wearing stephane. R/ Juno standing l., holding patera and sceptre; peacock at feet to l.; Z. RIC V 7.
Looks like Severina to me as well. Severina AE As Rome mint Obverse: SEVERINA AVG, diademed & draped bust right Reverse: IVNO REGINA, Juno standing left, holding patera & sceptre; peacock at feet Officina mark in exergue. I can't tell what your officina letter is.