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Obscure Mechanical Marvels of Playtime is a hard crossword puzzle with 11 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Obscure Mechanical Marvels of Playtime
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Machine exposing images briefly to study perception, adapted in ad toys
  • 2. An early 20th-century toy playing with oscillating magnetic fields
  • 3. Miniature signal device simulating telegraph pulses for interactive toy messaging
  • 4. Pivoting support mechanism that allowed stabilization in intricate toy tops
  • 6. Self-operating mechanical figure, precursor to modern robot playthings
  • 9. Cylindrical pre-film animation device spinning ephemeral images to trick eyesight
Down
  • 5. Inventive projection toy creating spectral illusions with mechanical slides
  • 7. Device aligning rotational motions in early automaton toys
  • 8. Optical apparatus producing symmetrical visual fragments from colored objects
  • 10. A rare electromagnetic toy from mid-20th century, named for aligning magnetic fields
  • 11. Small wheeled mechanism using weighted cams to create rhythmic percussion
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