on this Hollywood history website and this architecture blog) in Los Angeles. With the various WWI planes line up in the background of the second image, I'm suspecting that these three 8x10 photos are movie stills.
the Hollywood Heyday blog), stated, "Hollywood, Cal – Feb 5 (UP) Leo Nomis, one of Hollywood’s most prominent stunt fliers, was killed today during the filming of scenes in a picture called Sky Brides [sic]. The fatal crash took place while the movie company was working at the Metropolitan airport.Nomis and two other movie pilots were engaging in a 'dog fight' on a battle sequence at about 1500 feet. Nomis’ plane was supposed to 'shudder' [other sources indicate he was performing a spin] as part of the picture. It never came out of the shudder but plunged straight to the earth.The other members of the 'dog fight' told studio officials that they believed Nomis fainted at the stick."
Leo Nomis is interred at Glendale's Forest Lawn Memorial Park.
The Davis-Monthan Register web site includes a page on Nomis.