Vintage Atomic Spirograph Shaped Gold Tone Metal Brooch Aquamarine Rhinestone

EUC, no bends, no missing stones. This brooch has been stored in a jewelry box in a smoke-free home for over 40 years. This brooch belonged to a family member, and there is no signature. I take close-up pictures of the items so the details are clearly visible. It can make items look bigger, so please review the measurements in the photos