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This has all the qualities of Hobe jewelry--imposing size, wire-wrap style, corsage design, brilliant unfoiled stones in bezel settings, and good weight. I wonder if it is unsigned Hobe--an experimental gilded brass variation of their silver 1940s pieces? It is beautifully constructed, back and front, and huge: 4 & 1/2" by 3". As a long time Hobe collector, I would be willing to bet on it :) Because of the construction and materials, this beauty may be soaked in warm soapy water when needed without harm. It's a stunning piece whoever made it! They just don't make costume jewelry this fabulous any more in materials that will endure.
Brooch--Outstanding Vintage No-name Jeweled Flower Spray in Gold Tone