I think I have posted one of these pictures before, I am doing a re post because I had my artist friend, Jim's originals professionally scanned in Hi-Res (these are only 72 dpi). Jim's talent always amazes me, almost as much as his love of country and the work he does with wounded/recovering Veterans.
Both drawings were done in pencil from photographs I provided to him. Brough Superior and My BA engine.
http://postimg.org/gallery/97xse0lu/