For Your Information: Mutant of the Iron Horse
From Author Wars - https://authorwars.com/books/for-your-information-mutant-of-the-iron-horse-646761.html
Overview:
Editions/Publications:
- Unknown. Galaxy Science Fiction, June 1956 (Unknown, Willy Ley, Galaxy Publishing Corporation, $0.35, 148 pages, digest, MAGAZINE)
- Unknown. Galaxy Science Fiction [UK], No. 41 (Unknown, Willy Ley, Strato Publications, 2/-, 132 pages, digest, MAGAZINE)