– Tanenbaum collection label
– Gallery label: Shepherd Gallery, New York
– Exhibition label: Art Gallery of Ontario
– Inscription (in pencil?): BLAC
by 1916 – still in 1921
Dr. Joachim Zimmermann, Berlin, Germany 
In auction of "Freiwillige Versteigerung aus verschiedenem Besitz: Fayence, Porzellan, Glas, Jugendstil, Ostasiatica, Silber, Kunsthandwerk, Leuchter, Metall, Textilien, Orientteppiche, Möbel, Skulpturen, Gemälde, Graphik, Autographen, Bücher." Weinmüller, Münchner Kunstversteigerungshaus Rudolf Neumeister (A. Weinmüller), Munich, Germany, June 20-22, 1968, cat. no 1792 
Peter Griebert, Munich, Germany, purchased from Münchener Kunstversteigerungshaus Rudolf Neumeister 
1968 – 1969
Shepherd Gallery, New York, USA, purchased from Peter Griebert 
1969 – 1978
Joey (b.1933) and Toby Tanenbaum, Toronto, purchased from Shepherd Gallery 
National Gallery of Canada, given by Joey and Toby Tanenbaum 
The painting wason loan to the artist's memorial retrospective “Ausstellung zum Gedächtnis von Otto Greiner”, Leipziger Kunstverein, 1916 [cat. no. 123]; the very similar but undated version owned by Dr. Georg Hirzel, Leipzig, was exhibited as cat. no. 120 in the same exhibition. In 1921 the painting was still recorded as belonging to Zimmermann [Thieme-Becker, vol. XIV, 1921, p. 589].
 The catalogue lists Dr. Joachim Zimmermann, Berlin, and Dr. Georg Hirzel, Leipzig, as former owners, the latter probably erroneously [See note 1].
 German art dealer Peter Griebert acquired the painting on June 27, 1968 at a sale at the Münchener Kunstversteigerungshaus Rudolf Neumeister (A. Weinmüller) and sold it to the Shepherd Gallery, New York, shortly after [Email from Peter Griebert to A. Kausch, NGC Provenance Research Project, July 25, 2008].
 See note  In a fax to A. Kausch, dated July 16, 2008, Robert Kasheyof Shepherd Gallery confirms that he acquired Greiner's Prometheus from Peter Griebert “around 1968”. The Shepherd Gallery lent the work to the exhibition “The Sacred and Profane in Symbolist Art” at the Art Gallery of Ontario, Toronto in 1969 [without catalogue number but listed on p. XLIV].
 Joey and Toby Tanenbaum, Toronto, acquired the painting from the Shepherd Gallery in 1969 and gave it to the National Gallery of Canada in 1978. The Accession records only note the year of acquisition.
 See note .