Autograph Letter Signed ‘J.T.Lyon’, to William Blackmore, asking whether he has made up his mind about “the Salisbury Cathedral window”, offering good terms on account of the prestige of the commission. 2 pp. 8 x 5 inches, light creasing only. Stained Glass Works, 40 Fitzroy Square, London, 10 July 1867. Uncommon. James Tennant Lyon (1836-1872), stained glass artist.