Portrait: William Fairbairn (1789-1874). Proof mezzotint by T.O. Barlow after P. Westcott (in the Institution of Civil Engineers London), published by Agnew and Sons, Manchester, 1862. Print, mezzotint 88.5x59.5cm., platemark 50.4x38.2cm., image 40.2x30.2cm. Inscribed in ink, b.r: C J S Walker Esquire/Inscription Copy. - Printsellers Association stamp on plate area b.r.: STX. Portrait, TQL standing slightly to R. by table, looking front; eyeglass in l. hand; r. hand resting on sectional drawing of Conwy Tubular Bridge; other plans rolled on armchair behind; l., on drawing, letter from sitter to Robert Stephenson