Buying a collection from a non-collector - what's fair?
I'm speculating. I may be in a position to buy a collection of a friend of a friend. Lots of presumptions here.... I'm presuming that these are mostly silver coins, circulated, mostly 20th century. Presuming that someone has put them aside from what they pulled from circulation back in the fifties and sixties, expecting there's little in the way of XF let alone AU. Presuming that there is unlikely anything key or rare here. Presuming that no one has cleaned them to shine them up. Also presuming that the owner doesn't want to dillydally on itemizing and making lists. And also presuming that the face value is in the range of four to five hundred dollars.
So my question is what should I consider to be fair? Take it off their hands for how many times face value? I don't want to insult them by saying it's just junk silver (even if that's what it is), I want to do better than what a local shop might offer since I don't have their overhead costs.
What do you consider to be a fair ballpark dollar per dollar price for a lot of unresearched circulated silver coins?