Cartoon: "You invented an invisibility tonic? Why that's what I invented!"
From Author Wars - https://authorwars.com/books/cartoon-you-invented-an-invisibility-tonic-why-thats-what-i-invented-888356.html
Overview:
Editions/Publications:
- Unknown. Amazing Stories, April 1950 (Unknown, Shafer, Ziff-Davis Publishing Company, $0.25, 196 pages, pulp, MAGAZINE)