Three in One

From Author Wars - https://authorwars.com/publications/three-in-one-157.html

Overview:

Title: Three in One
Author: Leo Margulies
Year: 1963
Publisher: Pyramid Books
Price: $0.40
Pages: 144
Binding: Paperback
Type: Anthology
Title Reference: Three in One
Notes:
• "First printing, August 1963"; no number line • The title is listed as "3 in 1" on the cover but "Three in One" on the title page, spine, and page headers. • "Cover painting: EMSH" on back cover, the artwork is also signed • "Edited anonymously by [Sam] Moskowitz" [Currey] • Printed in the US