I recently acquired this Bakelite heart brooch and was wondering if there was any information regarding it e.g. maker and so on. It looks very similar to one of the heart brooches shown in the book but the color on mine seems to be a deeper red. It’s about 4 inches from top to bottom. I’ve been searching (mostly online) but have not been able to find another exact brooch so I thought I’d ask on here instead.