Mid 1800s Infantry button?

[zrickkid]

This little button is just about the size of a nickel. It still has the shank attached and is in very nice shape. I found this little baby in the corn field hunt with Silverstar, Illdigger and friends. We had a lot of fun. I think this button dates from the early to mid 1800s? It is marked Superior Rich on the back and has a wreath floral kinda grapevine pattern on the bottom. I believe the button was made of either brass, nickel, or some non-ferrous metal because it has not degraded or rusted out one bit. Maybe it dates to the Black Hawk War that was fought here in Illinois in 1832 and the next few years. Who knows. Any thoughts Del? Any help would be appreciated.