Dune Messiah

From Author Wars - https://authorwars.com/publications/dune-messiah-334387.html

Overview:

Title: Dune Messiah
Author: Frank Herbert
Year: Unknown
ISBN-10: 0425035859
Publisher: Berkley Medallion
Price: $1.75
Pages: 256
Binding: Paperback
Type: Novel
Title Reference: Dune Messiah
Notes:
"Berkley Medallion Edition, SEPTEMBER, 1975"
"Twenty-Third Printing"; no number line
This printing also appears in unnumbered and unpriced THE COMPLETE DUNE TRILOGY box set.
The artist is not credited, no visible signature on the artwork [Cover artist is in my (Don Erikson) opinion Vincent Di Fate].
Printed in the US