This is an antique Eureka Silver Company? Quadruple Plate Gold Tone Plateau Mirror. The dimensions are: Frame. 20.25 inches diameter and 1.5 inches deep. Mirror. 19.25 inches diameter. Please see pictures for detail and do feel free to write with any questions you may have. Do excuse the reflections in the images. Thanks for looking and all best offers will be considered so do feel free to make me a reasonable offer!