Not to Be Opened—

From Author Wars - https://authorwars.com/books/not-to-be-opened-932853.html

Overview:

Title: Not to Be Opened—
Author: Ward
Year: 1950
Type: Interior Art

Editions/Publications:

Unknown. Astounding Science Fiction, January 1950 (Unknown, Ward, Street & Smith Publications, Inc., $0.25, 164 pages, digest, MAGAZINE)