Carbon-Copy Killer

From Author Wars - https://authorwars.com/books/carbon-copy-killer-191837.html

Overview:

Title: Carbon-Copy Killer
Author: Alexander Blade
Year: 1943
Type: Short Fiction

Editions/Publications:

Unknown. Amazing Stories, July 1943 (Unknown, Alexander Blade, Ziff-Davis Publishing Company, $0.25, 212 pages, pulp, MAGAZINE)
Unknown. Amazing Stories Quarterly (Reissue), Winter 1943 (Unknown, Alexander Blade, Ziff-Davis, $0.35, pulp, MAGAZINE)