Well, asking is a good a start, but 'sugaring up' a teller and making friends is another good way. They see different coins come through their windows and some will even save them for you. Now, I mean sincerely being friendly and genuine. Be honest and let them know that you collect OLDER coins. You don't have to actually say the word 'silver' unless you want to. I have a teller like this and I've baked her cookies. She has let me buy for face value 1 Franklin half and 1 Rosie dime. The silver is out there. Good Luck with your hunting, either at the bank or in the dirt. : )