The People of the Black Circle

From Author Wars - https://authorwars.com/publications/the-people-of-the-black-circle-45195.html

Overview:

Title: The People of the Black Circle
Author: Robert E. Howard
Year: 1977
ISBN-10: 042503609X
Publisher: Berkley Medallion
Price: $1.95
Pages: 293
Binding: Paperback
Type: Collection
Title Reference: The People of the Black Circle
Notes: Stated Berkley Medallion Edition, September, 1977. Assumed 1st printing.
Edited by Karl Edward Wagner.
Color fold out poster of the cover art bound in.
Cover artist is uncredited. No visible signature. Kelly is confirmed by the online Robert E. Howard Bibliography
Interior art consists of three black & white illustrations that originally appeared with the Howard stories in Weird Tales. Uncredited, but clearly signed by Hugh Rankin.