My thoughts about this picture...
I like this picture for it's vivid colors and dramatic
angles. It's the only one of the four pieces of CAM-2 art that shows
the radiator and bottom of the cowling the proper color, which is silver,
as evident in the many b&w photos of the four original
Robertson DH-4s. Also notice in the b&w photos that a silver top cowling is shown in the early posed publicity
shots of the airplanes. Artist Ray Crane has left the silver top cowling
off the DH-4 in his painting, which is accurate according to photos that show
the airplanes in actual use.
All of the photos I have show the fin silver, just like the rudder, not red as shown in this painting.
This painting shows the fuselage lettering in white, which I believe is accurate
according to these sources:
1) The book "LINDBERGH" by Scott Berg says that
the fuselages were "painted maroon, with U.S. Air Mail printed boldly in white".
2) The book "AIR MAIL: An Illustrated History"
by Donald B. Holmes also says that the lettering was "white".
I don't know if Robertson DH-4 number 109 lived long enough to get wing mounted landing lights, but later CAM-2 mail planes did have them.
Upon first seeing "Lucky Lindy Finds A Hole", I questioned whether the wing and landing gear struts should have been painted red. I had assumed they were varnished wood. However, in support of Ray Crane's decision to depict them in red, close study of the b&w photos does show hardly any difference in the shades of gray between the struts and the red fuselage. I'd like to find more conclusive evidence.
I believe artist Crane's interpretation of the wheel hubs being silver is also probably correct, again judging by the best source we have, the numerous b&w photos from the CAM-2 innaugural period.