"Hogan Bolas" signed blue enamel copper earrings

Beautiful opalescent peacock blue and green enamel Hogan Bolas vintage copper screw back earrings. Rhode Island modernist artist who was known between 1940-60's for use of abstract jewelry designs with enamel ceramic and copper. Retro look with jeans jacket pony tail and popped white collar or peasant top One owner. Back shows signs of wear. Bracelet separate listing