© National Portrait Gallery, London
Joseph Townsend with 'View of the Escurial by Moon Light'
by William Holl Sr, after John Opie, and by Thomas Milton, after John Townsend, published by Robert John Thornton
stipple engraving and etching, published December 1805
18 3/4 in. x 12 7/8 in. (475 mm x 328 mm) paper size
acquired unknown source, 1964