RE: power of observation
Also, you can see the ocean in the background. All 3 manufacturers'factories (Bell, Douglas, and North American) were located in Southern California (Santa Monica, San Diego, etc.). So,it would be relatively easy to put all three together, in one place, for a State-side, publicityphoto, right near the ocean. In fact, weren't each of these planes originallyoffered through the Lend-Lease Program? (Yes, even theAllison powered P-51s were developed initially asa response to the Britishrequesting NorthAmerican to build P-40s under license, before America's entry into the war. But, North American had too much pride to build somebody else's model, so they developed the P-51 in a record 6 months . . .from conception to flying prototype.) It is possible that if this is apublicity photo, itmight be specifically for Lend-Lease marketingpurposes.