Here's a stylish necklace by the Jakob Bengel Factory. It's a lovely Art Deco necklace in white metal and blue galalith - which is an early plastic. Easy to wear. Price £175. Ref: A111/41. http://www.gillianhorsup.com/ and on Facebook - Gillian Horsup Vintage Jewellery. Also at Vintage Modes, Grays Antiques, London, W.1.