This pin looks like the head of a Caribbean or African woman swathed in fabric, or a Medusa. It is made of hard plastic in two tones that has been carved. It almost looks like a cameo. The lighter color is probably the true color with the dark color applied. This is not painted on. It is not Bakelite per tests. It is marked S on the back with a new safety clasp. It is 1.85 inches in diameter and in perfect condition. Not sure of age. The clasp makes it look new but it could be a replacement. Plastic does not show age.