The Hidden Universe

From Author Wars - https://authorwars.com/publications/the-hidden-universe-17011.html

Overview:

Title: The Hidden Universe
Author: Ralph Milne Farley
Year: 1950
Publisher: Fantasy Publishing Company, Inc.
Price: $2.00
Pages: 134
Binding: Hardcover
Type: Collection
Title Reference: The Hidden Universe
Notes:
- "No statement of printing on copyright page." - Currey
- Artist credited on front jacket flap.
- "Daddy!" by Jack L. Chalker in Fantasy Newsletter No. 61, August 1983 states that 1200 copies were printed, of which 500 were clothbound, 200 later paperbound, 300 later bound into Strange Worlds (1953) and 200 sold for Pick-a-Book.