[AUTOMATON CHESS PLAYER]. Maelzel's Exhibition of the Ne Plus Ultra in Mechanism. [London]: L. Harrison, ca. 1819. Letterpress handbill advertising the appearance of the famed “Turk" or Automaton Chess Player and the Automaton Trumpeter of John Maelzel of Vienna. Contemporary manuscript notations in upper and lower margins, the latter describing how one player lost to the Turk on March 9, 1819. 8 5/8 x 5". Laid down on an old album page. RARE.