Hello, I have a souvenir from the Hudson Fulton Celebration. I can not identify what it is. It is made of copper measures 3 1/2" long by 1/2" and very thin. It is double side on one side is picture of two ships the Half moon and the Clermont along with two pictures of men. It read Hudson Fulton Celebration 1909. The back has a picture of Grants tomb and a picture of statue of liberty and the center has been left blank for engraving. I can not seem to find anything like this, if anyone can help I would appreciate it. Thanks.