M Rhinestone PinLarge initial M pin by Dorothy Bauer. Bauer was a trained sculptor who started designing jewelry in 1982 and her company name was Piece of the Rainbow until 1999. Pav setting of red Swarovski Austrian crystals with two pin backs and signed oval cartouche on back. Make it known your name starts with an M and own a "Piece of the Rainbow." We would wear it on a jacket or on a bag. Red, silver. Condition: Excellent Materials: Swarovski Austrian crystals,