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Academy Da Vinci Machines Series Rolling Ball Timer Science Model Kit 18174a
Price:
£14.39
+ £3.95 postage
Returns:
30 days return. Buyer pays for return postage.
Condition:
No batteries.
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Excellent little model. Fun to build and fascinating to watch in action....Clever fellow our Da.......
Verified purchase: Yes | Condition: New
Excellent depiction of an escapement that later became the Congreve rolling ball clock, very well laid out instructions and parts all went together well, have already purchased others in the series.
Verified purchase: Yes | Condition: New
Good concept but not really a reliable mechanical motion.
Verified purchase: Yes | Condition: New
Mine came without instructions in English, and was therefore difficult to assemble
Verified purchase: Yes | Condition: New
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