Cosmic Engineers (Part 2 of 3) [3]

From Author Wars - https://authorwars.com/books/cosmic-engineers-part-2-of-3-3-929638.html

Overview:

Title: Cosmic Engineers (Part 2 of 3) [3]
Author: Wesso
Year: 1939
Type: Interior Art

Editions/Publications:

Unknown. Astounding Science-Fiction, March 1939 (Unknown, Wesso, Street & Smith Publications, Inc., $0.20, 164 pages, pulp, MAGAZINE)