Identifier2007-08-08_image_316SourceThe Lee R. Embree Collection (2007-08-08), Box 3DescriptionPhotograph of a Boeing Y1B-17 Flying Fortress aircraft (tail number 33 38R) in flight over mountains, circa 1930s-1940s.
[Boeing Y1B-17 Flying Fortress aircraft in flight], [2007-08-08_image_316]. Museum of Flight Digital Collections, accessed 08/02/2026, https://digitalcollections.museumofflight.org/nodes/view/9810