After Henry RAEBURN (1756-1823) Portrait of Sir John and Lady Clerk of Penicuik. large gouache miniature. Signed lower right "PREWITT". 9.5 x 13.7 cm (view). Soiling, stains. Frame with brass hoop engraved with water leaves and gray mother-of-pearl or burgau engraved with flowers. Back in green-black composition (?) with floral bouquet in mother-of-pearl inlays. 14.5 x 18, cm. Scratches, minor bumps, small cracks to the mother-of-pearl.