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Not-overly realistic but fun model of Powers’ rotorcraft:http://thumbs.media.smithsonianmag.com//filer/William%20Powers.jpg__800x0_q85_crop.jpg
Not-overly realistic but fun model of Powers’ rotorcraft:
http://thumbs.media.smithsonianmag.com//filer/William%20Powers.jpg__800x0_q85_crop.jpg
