vintage 1950's crystal circle pin sterling brooch (MISSING STONES)

This is a vintage 1950s sterling silver circle pin that I purchased at the Chelsea flea market in NYC in the early 2000s. It is marked sterling and is in great operating condition. It hasn't been cleaned in a while. It's been sitting in a jewelry box. PLEASE LOOK AT PHOTOS FOR MORE DESCRIPTION. There are 4 crystals missing- see picture with red circles. I've replaced them over the years, but they are delicate and have fallen off. This can totally be restored by the right buyer. It measures approximately 1 1/4 inch across. Pre-owned. Good vintage condition. Open to reasonable offers. *Bundle and Save*