Professor [Felix Gaston] Gauthier disclosed in his address that two pacifistic-minded nations are today secretly (and supposedly unknown to each other) planning to construct gigantic fighting robots, controlled by wireless.
"These mechanical soldiers," declared Professor Gauthier, "will be of unexampled proportions. My informants, whose authentic statements I have never had reason to question before, have conveyed to me the startling news that each of these nations hopes some day to build robots 1,000 feet high!"
Mammy vs Robot (Charleston Gazette, 1937)
Donald Duck's "Modern Inventions" (1937)
All's Fair at the Fair (1938)