This coin weighs 14.68 grams. I think it was struck at Side in the province of Pamphylia. I think the reverse is Apollo holding a patera in right hand and a spear/scepter in left. I have found similar but smaller coins in the references. These similar but smaller coins have the obverse legend: AVTO KAI ΠOVΛI ЄΓNΓAΛΛIHNOC CЄB or CB at the end; and reverse legend: CIΔHTΩN NЄΩKOPΩN. There is a large I in the field to the right of the bust which I think is a mark of denomination. Any input or corrections would be appreciated.
I believe you are correct. It's from Side and I'm fairly certain it's Gallienus. I found several similar at Coin Project, but nothing exact. You might want to take a look: http://www.coinproject.com/search_emperor.php?emp=Gallienus&city=Side&type=5
I found these as well so I think its correct (unless somebody jumps in here with other data). What is the big I all about? Is this a common feature on some provincial coins?
Cool lookin' addition, JBG ... Ummm, I have a coin from this neck o' the woods ... you may have already seen it? PAMPHYLIA, Side. Gallienus, Æ 11 Assarion 253-268 AD Diameter: 30 mm Weight: 14.25 grams Obverse: Laureate and draped bust right above eagle standing right, with wings spread, holding wreath in beak; IA obliterated by c/m of Є within circular incuse Reverse: CIDHTWN NEWKORWN, Athena standing facing, head right, holding spear and [thunderbolt], with shield at side; pomegranate to left