The jumping jack is a jointed, flat wooden figure, a cross between a puppet and a paper doll that is considered a mechanical toy. The figure's joints are connected to a pull string that causes the arms and legs to move up and down when the string is pulled and released.
The jumping jack is a jointed, flat wooden figure, a cross between a puppet and a paper doll that is considered a mechanical toy. The figure's joints are connected to a pull string that causes the arms and legs to move up and down when the string is pulled and released.
Source: Wikipedia "Jumping jack (toy)" · CC BY-SA 4.0
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