Seth Thomas "Eclipse" or Balltop shelf clock, ca 1900. 8 day, strikes a coil gong on hours and half hours, and alarms on a bell. 24 inch walnut case never touched with a cleaner. Everything correct including the glass, dial, bob, and hands. There is a label inside and one on the door which says, "No.K.252". I have seen these on other Balltops but have no idea what it means. I don't think you would need to do anything to this clock, use as it is. Ly-Seth Thomas, page 479.