Atlantropa—The Improved Continent (map)

From Author Wars - https://authorwars.com/books/atlantropa--the-improved-continent-map-2173076.html

Overview:

Title: Atlantropa—The Improved Continent (map)
Author: uncredited
Year: 1939
Type: Interior Art

Editions/Publications:

Unknown. Marvel Science Stories, February 1939 (Unknown, uncredited, Western Fiction Publishing Co., $0.15, 132 pages, pulp, MAGAZINE)