The Convention

From Author Wars - https://authorwars.com/books/the-convention-724321.html

Overview:

Title: The Convention
Author: Ede Witt
Year: 1959
Type: Short Fiction

Editions/Publications:

Unknown. Fantastic, May 1959 (Unknown, Ede Witt, Ziff-Davis Publishing Company, $0.35, 132 pages, digest, MAGAZINE)
Unknown. Weird Mystery, Spring 1971 (Unknown, Ede Witt, Ultimate Publishing Co., Inc., $0.60, 132 pages, digest, MAGAZINE)