Following the Pearl Harbor attack, in an effort to hide West Coast aircraft bases and manufacturing facilities from enemy bombers, entire facilities were covered with camouflage netting that included rubber automobiles and other residential neighborhood props. Because the "suburbs" had to show signs of activity, workers posing as residents occasionally emerged from the air base through hidden trap doors in order to "move their cars" or "go for a walk."
Shown in the slideshow below, Lockheed's Burbank facility, before and after, and a sampling of camo elements. Click to right or left of the photo to advance or back up.
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