lower right in yellow pastel: OTT (in monogram)
(Colnaghi, New York); (Jean-Luc Baroni, Ltd.); gift to NGA, 2005.
- Colnaghi: An Exhibition of Master Drawings. New York, Adam Williams Fine Art, 2001, no. 60.
- Medieval to Modern: Recent Acquisitions of Drawings, Prints, and Illustrated Books, National Gallery of Art, Washington, 2008, no. 129.