Da Vinci Aerial Screw Kit

SKU:
S169101
|
UPC:
769188610028
$10.00
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Width:
11.00 (in)
Height:
9.00 (in)
Depth:
3.00 (in)
Current Stock:
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*The aerial screw designed by Leonardo da Vinci was a precursor of the modern day helicopter. 

*Designed to compress air in order to obtain flight.