When the exact same issue came up with a neighbor I said call all the pawn shops in town, or actually go there and show them the coins. Do not sell them to those guys, but get a price they will pay. He didn't want to do that, so I called all the pawn shops and asked what they would pay for the silver coins, per coin. Wrote those figures down and showed them to him, they were all over the map, but I told him I paid 75% of silver value at that days rate. He could sell to me or go to them but I would be a heck of a lot more than he could get from them. So at today's rate a dime would get him $1.15 from me and the quarters would get $2.87. Of course the days rate changes daily and my figures would change too. I ended up getting the coins as he understood he could not get what I was paying anywhere in town. He may have got more off a web site like Craig's list, but he was not going to want strangers into his home.