Vintage Syroco or Burwood plastic framed glass mirror, like something from Versailles or maybe Cinderella! This is just lovely, very ornate rococo style with antique gold colored finish. Measures about 27 1/2" x 20" overall.
Frame has some finish wear (barely noticeable on a piece like this). Glass looks pretty nice, does have a little light wear / scratching as might be expected, it's over 50 years old.