The Mightiest Machine

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Overview:

Title: The Mightiest Machine
Author: John W. Campbell, Jr.
Year: 1947
Publisher: Hadley Publishing Company
Price: $3.00
Pages: 228
Binding: Hardcover
Type: Novel
Title Reference: The Mightiest Machine
Notes:
- On copyright page: "Copyright 1947 by John W. Campbell, Jr." and "Copyright by Street & Smith Publications 1935". No statement of edition or printing.
- "Illustrated by Robert Pailthorpe" on title page. Blurb on front flap of jacket notes, "The Jacket and Illustrations are the work of Robert Pailthorpe ...." All four of the interior illustrations are signed with Pailthorpe's name or initials. There is no signature on the jacket art. Noted without explanation: both Chalker/Owings and Kemp credit the interior illustrations and this edition's jacket art to Betty Wells Halladay.
- Later copies were issued in this jacket.