Popular Science.~ Popular Science Publishing Co., 1/1941-12/1945, Vol. 138, No. 1 through Vol. 147, No. 6.~ Very Good (some bent ends, chipped spines, and a few present detached rear covers but generally very good inside and out).~ Sixty wartime issues, less common as many subscriptions were cancelled, loaded with articles, photos, and illustrations.~ $195.00