Good morning. Another Brown Countian here. Been spending a ton of time in Columbus at the hospital lately. Sorry for your loss. Assuming, of course, that a relative passed leaving you with this connundrum.
There is a gun shop along 31 north of Mancino's on the east side of the road, but the name escapes me. And I do not know them at all so no ability to speak to reputation. If you have time and are willing to do the research, Gunbroker will allow you to place reasonable values on many common guns by checking what others like them have sold for. You will receive more, usually, selling them to individuals than to a gun store. Many stores will sell on consignment also. Best of luck with the sale.