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Keywords from Image Description:
john mcgrew johnmcgrew world war one worldwarone th aero group thaerogroup wwi ww flieger plane biplane doppeldecker weltkrieg aviation aircraft airplane military aviation militaryaviation salmson salmson salmson salmson salmsona salmson salmsonz salmson za salmsonza aerial photography aerialphotography aerial photograph aerialphotograph