The first task is to determine if your coin is on official product of the mint of the United States of America. If it is not, then this guide will not help you. You get extra credit if you can name a regular issue coin that doesn't have this text on it.
Coins produced by the United States mint fall basically into the following categories.
Regular Issue Coins - A regular issue coin was struck by the mint for the express purpose of providing coinage for commerce. Nearly every coin you have ever spent falls into this category. These coins outnumber all other categories by hundreds to one. Nevertheless, many regular issue coins are extremely rare. Usually, they are struck twice to bring out the full design in great detail.