The Plunge of the "Knupfen"
From Author Wars - https://authorwars.com/books/the-plunge-of-the-knupfen-91747.html
Overview:
- Title: The Plunge of the "Knupfen"
- Author: Leonard Grover
- Year: 1909
- Type: Short Fiction
Editions/Publications:
- Unknown. Famous Fantastic Mysteries, February 1940 (Unknown, Leonard Grover, The Frank A. Munsey Company, $0.15, 132 pages, pulp, MAGAZINE)
- Unknown. The All-Story Magazine, April 1909 (Unknown, Leonard Grover, The Frank A. Munsey Company, $0.10, 196 pages, pulp, MAGAZINE)
- Unknown. Super Science and Fantastic Stories, August 1945 (Unknown, Leonard Grover, Popular Publications, Inc.; Toronto, Canada, C$0.15, 84 pages, pulp, MAGAZINE)