Lord of the Black Throne

From Author Wars - https://authorwars.com/books/lord-of-the-black-throne-1035344.html

Overview:

Title: Lord of the Black Throne
Author: Dan Adkins
Year: 1969
Type: Interior Art

Editions/Publications:

Unknown. The Conan Swordbook: 27 Examinations of Heroic Fiction (Unknown, Dan Adkins, Mirage Press, $5.95, xiii+255 pages, Hardcover, Non-fiction)