Identifier2007-08-08_image_320SourceThe Lee R. Embree Collection (2007-08-08), Box 3DescriptionPhotograph of two Boeing Y1B-17 Flying Fortress aircraft (visible tail number 81), circa 1930s-1940s.
[Boeing Y1B-17 Flying Fortress aircraft], [2007-08-08_image_320]. Museum of Flight Digital Collections, accessed 10/12/2025, https://digitalcollections.museumofflight.org/nodes/view/9814