Leonardo Da Vinci Helicopter 15th Century Aerial Screw Wood Model Kit-The Aerial Screw is one of Leonardo's most iconic drawings,and defines an artist and inventor well ahead of his time.This working model uses a bevel gear.also from his drawings,to spin the canopy and support structure,illustrating a way Leonardo thought flight might be possible-Easy to make in about an hour.Natural untreated wood from sustainable forests.All pieces pre-cut and ready to go.Parts are pegged for extra strength.

In STOCK ships QUICK Expedited shipping upgrade to USPS Priority Mail arrives in a few days and usually safer handling!

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We do offer multiple item shipping discounts you can either email me with the items you want to buy for a quote or you can just purchase them and request an invoice at checkout prior to paying.Usually any item after the first will ship for about half of it's normal shipping fee provided you purchase them at the same time.They are also a few exceptions we can't cover everything here!


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