Mid Century Modernist. Rosewood, possibly mahogony. The wood is well worked with an almost satin finish. Applied stylized animal / bird. Stamped into the wood is the mark Burkee. Measures 1 5/8 inches. For more detailed information on Bonnie and Irvin Burkee, see Marbeth Schon's book, "Form and Function American Modernist Jewelry". Ca., 1960 and is in near pristine condition.