This sterling silver roadrunner pin is made by Zuni artist Caroline Edaakie. It is signed CE on the back. Although this pin is sterling silver it wasn't marked as such.
 
In some Native American cultures the roadrunner is thought to ward off evil spirits. This pin measures 1.3" long by 1.6" wide. It is inlaid with shell, mother of pearl, jet, turquoise and red jasper.