Edwardian gilt brass and blue enamel brooch pendant on solid brass 4 ring rope chain. pded079

Edwardian gilt brass brooch with blue enamel converted into a pendant. The pendant has an amazing carved glass intaglio with the image of Medusa's profile in a classic Greek style.The glass is a dark Madeira color. The pendant measures 1 3/4 x 1 3/8 inches and hangs from a sturdy very old solid brass 4 ring rope chain, with a very rich patina. The necklace measures 21 inches.