That's what I was thinking. I see the kind of worn "G/U/Y" top/right (6 years) and then the "II" below that (+2 years). Similar to this one: https://www.vcoins.com/en/stores/sp..._both_nimbate_rev_large_k/933368/Default.aspx Or this one: https://www.ebay.com/itm/JUSTIN-II-...a-Ancient-Byzantine-Coin-i57262-/351822221411 I wouldn't think it is terribly rare at all. Maybe specifically desirable to someone collecting all years/mints of the Justin II & Sophia Half Follis types.