camouflage application / women's limited capabilities

Above This an oddity, to be sure. I'm uncertain where I found it, but I do know that the original photograph (grayscale only, but misleadingly AI-colorized here) was published in The American Machinest (c1918), with the photo caption of "The finished product—American made gun and tractor—Detroit, Mich." The original image is an elongated horizontal, but, in order to show it in detail here, I have sliced it into three parts and stacked the sections. The article which it illustrates describes the process by which the camouflage design was applied to the tractor, which had been driven into a "camouflage room," where it was initially assumed that only men (not women) would be capable of painting the pattern. The article goes on to say—

Here a process never before used was applied. Paint guns had been used for the two coats of olive drab, but it did not stop at that point. One man marked off the camouflage design with chalk and marked each recess with the numbers 1, 2 or 3, number 1 being green, number 2 buff, and number 3 yellow. Each painter was given a number—1, 2 or 3.  Number 1, using green paint, painted every place on the tractor that was marked 1, while number 2, using buff, filled in every place marked 2, and 3 proceeded in like manner. After the first few tractors had been run through in this manner, it was found that women could do this work as well as men, and women were hired, relieving the men for heavier work. The black striping was done by a man at the end of the paint line. The total time required for assembling armor, tool box and camouflaging was one hour.