Antique Georgian Venus Enamel Pinchbeck Brooch

From a private estate we have a beautiful antique brooch. The brooch depicts Venus with two cherubs. The piece is beautifully executed enamel on copper in a Pinchbeck frame. The enamel is in pristine condition. The brooch measures 2 1/4" wide by 2" with a projection of 3/8". The frame is hand engraved. We date the brooch circa 1840-60 legal antique.