"Merlin's Ring"

From Author Wars - https://authorwars.com/books/merlins-ring-1778680.html

Overview:

Title: "Merlin's Ring"
Author: Gervasio Gallardo
Year: 1976
Type: Interior Art

Editions/Publications:

Unknown. The Fantastic World of Gervasio Gallardo (Unknown, Gervasio Gallardo, Peacock Press / Bantam, ISBN-10: 0553010379, $6.95, [96] pages, Trade Paperback, Non-fiction)