http://justacarguy.blogspot.com/2013/03/douglas-world-cruiser-first-round-world.html for an article on the round the world airplanes
http://skyscraperpage.com/forum/showpost.php?p=6259522&postcount=16563
Douglas Aircraft was in Long Beach, and was the company to make the 1st planes to fly around the world, and the first air conditioned manufacturing plant
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