This is a picture of the card that describes
the automation that was called "The Turk". It was a machine type apparatus
that people tried to figure out how it was able to play by itself without
any one around to move its hands. What people did not realize was the fact
that there was a small access area where a midget who was an expert level
player would get inside and pull the levers to get the machine to pick and
move the pieces.
The original Turk machine burned in a fire in Philadelphia
in 1854 but a magician recently rebuilt a working replica based upon the
original blueprints.