World of the Masterminds

From Author Wars - https://authorwars.com/books/world-of-the-masterminds-1068002.html

Overview:

Title: World of the Masterminds
Author: Ed Valigursky
Year: 1960
Type: Cover Art

Editions/Publications:

Unknown. To the End of Time and Other Stories / World of the Masterminds (Unknown, Ed Valigursky, Ace Books, $0.35, 108+148 pages, dos, Omnibus)