How to cite
David Blayney Brown, ‘Ground Plan of Herstmonceux Castle and a Coat of Arms Incorporating a Crown c.1806–10 by Joseph Mallord William Turner’, catalogue entry, March 2011, in David Blayney Brown (ed.), J.M.W. Turner: Sketchbooks, Drawings and Watercolours, Tate Research Publication, December 2012, https://www