Berserker Man

From Author Wars - https://authorwars.com/publications/berserker-man-190365.html

Overview:

Title: Berserker Man
Author: Fred Saberhagen
Year: Unknown
ISBN-10: 044105496X
Publisher: Ace Books
Price: $3.50
Pages: 220
Binding: Paperback
Type: Novel
Title Reference: Berserker Man
Notes: Artwork and main text as shown in image, minus "First Publication in any form!", but price is definitely $3.50 rather than the $2.25 shown. 10th printing according to number line.