A rectangular brass carriage clock with a hinged, faceted D-shaped handle; the white enamel face painted with two dials in black; on an incurving plinth base. The glazed top is painted in gold with a crowned N cipher. The eight day rack ting-tang striking mechanism has a going barrel movement and European lever platform escapement. The enamel face has two dials; the main dial has the 12 hours represented by Roman numerals and blued steel moonhands. The subsidiary alarm dial below has a blued steel pint.