Mother of All the Triads

From Author Wars - https://authorwars.com/books/mother-of-all-the-triads-1967096.html

Overview:

Title: Mother of All the Triads
Author: William Blake
Year: 1987
Type: Interior Art

Editions/Publications:

Unknown. The Secret Arts (Unknown, William Blake, Time-Life Books, ISBN-10: 0809452855, 143 pages, Hardcover, Anthology)