Signed in clockwork by J. Gill, 1421 London. Around the year 1770. Silver stamp for London, 925/1000, annual stamp, small d. Difficult to read master stamp. The clockwork, resting on profiled gilded pillars, the openwork oroclave with rococo shape. Outer case with decorative spikes in silver. Diameter including outer case 51,5 mm. Weight 106.7 grams. Condition Usage and age-related wear, the dial with cracks near the edge. The outer case with cracks and some minor loss, some silver nail missing. 27361