Gwinn Aircar light aircraft from 1937.
https://diqn32j8nouaz.cloudfront.net...s_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...748#post213002
https://www.homemadetools.net/forum/...408#post192741
https://www.homemadetools.net/forum/...710#post190212
https://www.homemadetools.net/forum/...775#post216733
https://www.homemadetools.net/forum/...755#post216662
