Could it be an early 1920's United States design (e.g. Boeing, Curtiss, Vought...) for a biplane civil (or reconnaissance) two-seats Aircraft ?
The apparently awkward positioning of the 5 cyl. radial engine, could have provided relatively better frontal visibility and, maybe more importantly, to mount one light sychron. machine gun centred over the "nose".
But these are all unfounded conjectures, not having been able to identify this Aircraft yet (if it was depicted by a proper silhouette, I would possibily be even more confused ;-) ).