4. Geometrical instruments
  5. Straight-line light ray type
  6. Celestial

Athelstan Spilhaus

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Geographical sundial

Geometrical instruments – Straight-line light ray type – Celestial
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Map puzzle having periodic tesselated structure

Amusement devices: games – Puzzles – Take-aparts and put-togethers
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Profile ID: LFUS-PAI-P-1022645

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