The Chessboard of Mars

From Author Wars - https://authorwars.com/books/the-chessboard-of-mars-1058713.html

Overview:

Title: The Chessboard of Mars
Author: uncredited
Year: 1937
Type: Interior Art

Editions/Publications:

Unknown. Thrilling Wonder Stories, June 1937 (Unknown, uncredited, Beacon Magazines, Inc., $0.15, 132 pages, pulp, MAGAZINE)