In the link I posted, it says that this was from the first half of the 18th century. It tells a little history of the possibilities of how they came into the American soil. Depends on where you found it and what the other artifacts found nearby it tell us, context wise. Often times, other finds will support or shoot down our theory about a site and how the artifacts as a whole, relate to one another. According to the link, it may have been traded to Native Americans by French sailors. Could be anybodies guess.