Charlie -

That's going to be pretty tough, I think we need more info. There are common strikes, just like chips and there are expensive strikes. Best thing to do is an eBay search for past auctions. With silver where it is now, I've bought commons tens for $12-18, common twenties for $25-30 and I have picked up some forties at face to $10 over face. Some of the rarer strikes go for more. Clad tens seem to be face to $14, folks get a little more when the $300 releases are close. If you have a list, we can probably help a little more.