This is a charming vintage bar pin in sterling silver and guilloche enamel. It has a lovely design of lilies on a blue ground. It fastens with a c catch and it is stamped Sterling on the back. It dates to the very early part of the 20th century.
It measures 1 3/4 inches by about 1/4 inch and it is in good vintage condition with some areas of loss to the enamel as can be seen in the photograph.