You are viewing an Art Nouveau era stickpin or lapel pin. The top of the pin has a lady's profile. It is cast and then hand painted in enamel. The portrait measures 11 mm or just under 1/2" by 17 mm or just under 3/4". The overall length of the stickpin is 2 1/4". There is minor loss of the blue enamel work around the back of her head, see photo. The pin comes with a clutch.