A 19th-century slate horizontal garden-sundial, signed R. MELVIN & SON Makers to the Crystal Palace Co., LONDON the bronze gnomon set for Latitude 51 6 North, with four subsidany dials for Morning, Afternoon, Evening and Night engraved with the names of numerous cities and towns, instructions for use and The Solar time on the dial in 7½ minutes slower than Greenwich or Railway mean time 15½in. (39.4cm.) square