Observations on the automaton chess player now exhibited in London at 4, Spring Gardens
- publisher: London : Printed for J. Hatchard
- creator: Oxford graduate Harry Houdini Collection (Library of Congress) DLC
- contributor: Harry Houdini Collection (Library of Congress) DLC
- Keyword: Automaton chess players.
- years: 1819.
- pages: 32 p. ;
- class: GV1447
- notes: LC copy has the autograph of Harry Houdini, 1904.
- download: pdf file