Vintage Blue LISNER Leaf Pin Brooch

This is a vintage (circa 1955-65) LISNER brroch consisting of 5 thermoset leaves. Three leaves are darker blue and 2 leaves are a little lighter blue. Are leaves and pin back are tight in their settings. The backround metal is a silver color. It measures 2 1/4" long and is clearly marked LISNER on the back. It is in excellent shape for a 50 year old pin!!