CLARK, William Tierney. 16075 Autograph Letter Signed, to M.Brand, asking for an order ot see “Tuck’s patent smoke consuming furnace”, referring to “the saving in fuel by his patent Furnace which has been so long at work at the Mint and giving perfect satisfaction.” 2 pp. 7 x 4½ inches, in good condition, light trace of mounting. Hammersmith, 10 October 1848. William Tierney Clark FRS (1783 – 1852) was an English civil engineer particularly associated with the design and construction of bridges. He was among the earliest designers of suspension bridges.