This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
autograph jimmy doolittle jimmydoolittle flight instruments flightinstruments best of sdasm bestofsdasm aviation aviator james h. doolittle jameshdoolittle james doolittle jamesdoolittle doolittle American aviation pioneer served as brigadier general major general and lieutenant general in the United States Army Air Forces during