Ancient Roman coin

I recently bought a coin and need some help adding it to this website. This is the description of the coin from where I bought it.

"Gallienus in the sole reign (260-268 A.D.) BI silvered antoninianus (3.80 g. 22 mm.) Rome, AD 265-266.
GALLIENVS AVG Radiate head of Gallienus to right. /
SALVS AVG Salus standing left, feeding snake out of patera.
MIR 650a. RIC 117."

https://en.numista.com/catalogue/contributions/instructions.php is your go-to for posting the coins.  Also, when I can, I try to look at very similar coins to see what details they have to help conformity with precedent.

Nice coin!  Good luck :)