Protective Helmets
From Author Wars - https://authorwars.com/books/protective-helmets-3049492.html
Overview:
- Title: Protective Helmets
- Author: uncredited
- Year: 1937
- Type: Essays
Editions/Publications:
- Unknown. Doc Savage Magazine, April 1937 (Unknown, uncredited, Street & Smith Publications, Inc., $0.10, 132 pages, pulp, MAGAZINE)