Photograph of a group of men with a Cessna CG-2 Glider, circa 1930s.
unidentified photographer
CC BY-SA 3.0
The C. Ashby Shoop Aviation Collection/The Museum of Flight <a rel="nofollow" class="external free" href="https://digitalcollections.museumofflight.org/items/show/51068#?c=0&amp;m=0&amp;s=0&amp;cv=0&amp;xywh=236%2C367%2C552%2C414">https://digitalcollections.museumofflight.org/items/show/51068#?c=0&amp;m=0&amp;s=0&amp;cv=0&amp;xywh=236%2C367%2C552%2C414</a>