A gravity timepiece, brass, c.1920. Brass cased circular movement slides on two vertical columns descending from top to bottom in 30 hours and rewound daily by raising the movement to the top. The mechanism uses a compound pendulum with two small brass spherical bobs and visible escapement, and the time is shown by brass hands behind the glass front panel reverse painted with white Arabic numerals. Made by Watson & Webb, London, The Keeless Clock Company, height 26 cm