Vintage Eisenberg Crystal Brooch Pin Circle Silver Tone

This Eisenberg broch belonged to my mother. My best guess is that it is from the 40's or 50's. It is in nice vintage condition with Eisenberg stamped on the back. Clear stones in a starburst pattern. Just found in a box as we prepare to move to warmer and less taxed climes. I never wore it and to tell the truth, I don't recall my mother wearing it either. Please look at all the photos and ask any questions before you buy.