There`s a couple stills and a brief summary in the Bizarre Sinema! Archives book on Cine Fumetto.
"Balsamus, that is Cagliostro, and his mysterious-sexual, Bolognese-styled rites. This curious outing, marking Pupi Avati`s helming debut, already shows the filmmaker`s fascination with magic, supernatural and gothic style. All the characters are portrayed in an extremely grotesque and exaggerated manner, much like those featured in several future movies of the director. The film is also the result of the cooperation between the Bolognese filmmaker and his fellow citizen Roberto Raviola, aka Magnus, who, on this occasion, drew (w/o being credited) the sketches depicting the movie`s bizarre characters. Avati and Magnus were supposed to work together on several projects, none of which, unfortunately, ever materialized."
Yeah, you can count me in as someone who would love to see this one day.
FWIW - the book lists the year as 1968.