In going through a bunch of boxes, I discovered 11 silver strikes that I won in Las Vegas quite a while back. I would like to get rid of these but am curious on the value of them. I'll also admit that I'm cheap and don't want to pay for a book that I'll use once and then never open again. Would anyone here be willing to help me with what the value of these are? I'm sure they are pretty common but I don't want to put them up for sale without knowing what they are worth.

Thanks,
Jeanelle