Signature: Signed lower right, "Robert Marc".
London, Alon Zakaim Fine Art, Robert Marc: Reflections and Rediscovery, 11 March - 8 April 2011
Exhibition catalogue, Robert Marc: Reflections and Rediscovery, London, Alon Zakaim Fine Art/ E and R Cyzer Gallery, 2011, no. 21 (illustrated in colour)
Estate of the artist;
Forum Gallery, New York;
Barry Friedman Ltd., New York.