Beta Sigma Phi Sorority charms on a charm bracelet from the late 70s to 1980.
There are 22 charms total. 2 charms are not Sorority related; one with a needlepoint yellow rose and the other being an enamelled town of Portage La Prairie charm.
Charms and chain are not marked as sterling silver, so I am assuming they are some other metal and are silver and nickel plated.