Fair Exchange?

From Author Wars - https://authorwars.com/books/fair-exchange-663605.html

Overview:

Title: Fair Exchange?
Author: Freff
Year: 1978
Type: Interior Art

Editions/Publications:

Unknown. Asimov's SF Adventure Magazine, Fall 1978 (Unknown, Freff, Davis Publications, $1.75, 118 pages, quarto, MAGAZINE)