Snowflake coat pin brooch enamel on steel vintage costume jewelry ll2417

This pin is so heavy it really should be reserved for coats or heavy fabrics like denim or corderoy. It feels like cast iron that has been entirely coated in heavy enamel paint. It is in the shape of a snowflake rendered in orange-red on pale yellow. It is 2.25 inches in diameter and has a strong safety clasp on the back. Excellent condition.