Air Wonder Stories, Vol. 1, No. 9 (March 1930) (1930)
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( Illustration by Paul) A cluster of mighty towering buildings filled the lower portion of the picture and aircraft of freakish and undreamed-of shapes and sizes flew among the great buildings. Vivid beams and rays cut the air in every direction. 774
Internet Archive · Public domain (published before 1931). Free to use for anything.