A Rare Pair of Early 20thC Convex & Concave Oak Optometrists Wall Mirrors c.1925Origin: English Period: Early 20thC Provenance: Unknown Date: c. 1925 Each: Height: 18. 5 Depth: 2. 5 Width: 13 The scarce pair of deep dished optometrists wall mirrors, one being concave, one convex, and each with an oak frame and tram line border, the original thick plates in tact, to the original pine backing boards and link chain attachments, one with a paper label reading S. Walton F. B. O. A qualified optician 517 Stanhope Road, Tyne Dock and