Stiletto Heel Brooch Vintage

High heel pin in silvertone with gunmetal grey enamel on the front and white rhinestones at the toe and heel, little raised part at the top of the shoe that looks repressentative of a buckle. This dates back to at least the 1980s (from my mom's collection). Zoom to see that all rhinestones are intact. See last photo with Before it was cleaned (top) and After (bottom). I am listing this as "silvertone" because there is no sterling stamp that I can see, but it had been tarnished. I am guessing it's an alloy. Weighs approximately .6 ounces unpackaged. Length approx. 2"; Height approx. 1.5".