Well, you should try to learn some things about silver, gold, collectible coins and jewelry before selling your finds. Judging the value of your finds will get easier with time. If the coins are not showing a date, they are only good for the bullion value, that is, unless you want a better return on those coins. The way to get the most value from your worn out coins is to use them in various jewelry items, such as keychains, moneyclips, necklaces, and anything else you can create for resale.
Ask around about anyone in your area buying metal. Many jewelry stores and coin shops buy precious metals. But, like I said, learn about values of metals or you may not get what you deserve for your stuff. Also, never send your metal through the mail to those advertisers on TV(IMHO).
Good luck! HH