Hugo Gernsback

Amazing Stories - Vol. 1 No. 1

Amazing Stories - Vol. 1 No. 2

Amazing Stories - Vol. 1 No. 4

Amazing Stories - Vol. 3 No. 2

Evolution of modern science fiction

Official radio service manual and complete directory of all commercial wiring diagrams, 1930

Official Radio Service Manual and Complete Directory of All Commercial Wiring Diagrams, 1930

Radio for all

Radio-Craft: 50 Years of Radio

Ralph 124C 41+

RALPH 124C 41plus

Ralph One Hundred Twenty Four C, Forty One Plus

The Science Fiction Roll of Honor

The Scientific Adventures Of Baron Munchhausen

Ultimate world

Ultimate Worlds