Caption:
Details of the mechanism of an astronomical clock made by the firm of John and Myles Brockbank, a famous London clock maker. Copperplate engraving by Wilson Lowry after a drawing by J. Farey Jr. from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820.