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25th May 2019 | 22:30

#1 (permalink)

wrench1

Joined: Oct 2006

: A&P

Posts: 1,346

Likes: 270

From: USA

Igor Sikorsky...

Are there any peers at his level? He sure started the ball rolling....
https://www.thisdayinaviation.com/25-may-1889/

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