A Louis XV carved and gilded frame, with egg-and-spool ovolo at outer edge; outer scotia; the pierced corners with rocaille work flanked by scrolling foliage and tendrils; swept sides; ogee moulding with leaf pattern on fluted ground; later foliate sight edge; round sight edge - diam. 7 7/8 x 3 in. (diam. 20 x 7.6 cm.) without the later sight edge