This listing is for a beautiful seashell pin. This pin would look great worn on the lapel of a blazer or jacket. I think this kind of shell is called a conch shell. The pin has an iridescent finish, with round colored pieces in it. The pieces are in a few different colors. The pin is made of some kind of base metal. This pin has a nice weight to it, and seems to be well made. It is not real lightweight. The pin does not look like it has ever been worn. There are no markings at all on the pin. The approximate measurement of the pin is 1 and 8/16 inches across, and approximately 1 inch tall, at its tallest point.