1772949 Crimson Topaz (Topaza Pella) (hand-coloured litho) by Gould, John (1804-81) (after); The Devonshire Collections, Chatsworth; (add.info.: Illustration from \'The Birds of Great Britain\' by John Gould, printed in London, 1862??3. Most plates engraved by H. Richter.); Reproduced by permission of Chatsworth Settlement Trustees; English, out of copyright.