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:
sdasm aviation aeronautics aircraft airplane airlines airliners douglas aircraft douglasaircraft douglas aircraft company douglasaircraftcompany dac mcdonnell douglas mcdonnelldouglas mcdonnell douglas dc mcdonnelldouglasdc dc dc dc dc northwest airlines northwestairlines northwest nwa northwest orient northwestorient blackandwhite