Spotted Satan

From Author Wars - https://authorwars.com/books/spotted-satan-1118854.html

Overview:

Title: Spotted Satan
Author: Virgil Finlay
Year: 1940
Type: Interior Art

Variant Titles:

1940. 1940 — Spotted Satan by Otis Adelbert Kline and E. H. Price

Editions/Publications:

Unknown. Weird Tales, January 1940 (Unknown, Virgil Finlay, Weird Tales, $0.15, 132 pages, pulp, MAGAZINE)
Unknown. Weird Tales (disc 4, part 2) (Unknown, Virgil Finlay, unknown, Anthology)