Sterling Guilloche Enamel Bar Pin Brooch

Offered is an antique sterling guilloche enamel bar pin. The petite brooch has a rich dark cobalt blue color. It measures  about 1 1/4″ long and  1/8″ wide. It is marked sterling on the back, and has strong closure with a modified C clasp shape. Perhaps once used as a lingerie pin, the jewelry has has no condition issues.