According to my web-based research, this seems to be a very popular subject on the web! Regardless, since most USA coins and bills have the phrase "E Pluribus Unum" (i.e., "One out of many") on them, there is no way to give you a specific answer. Visit your local library, book store, coin dealer, antiques dealer, or pawn shop for assistance (if you have the coin, and are not asking solely for the sake of asking, make sure to bring it to the dealer or pawn shop, but do not let it out of your sight).
