Eugen Gutmann [1840-1925], Berlin, by 1912. (Bachstitz Gallery, The Hague); inheritance from Estate of Peter A.B. Widener by gift through power of appointment of Joseph E. Widener, Elkins Park, Pennsylvania, after purchase 1922 by funds of the estate; gift 1942 to NGA.
- Inventory of the Objects d'Art at Lynnewood Hall, Elkins Park, Pennsylvania, The Estate of the Late P.A.B. Widener. Philadelphia, 1935: 40.
- Works of Art from the Widener Collection. Foreword by David Finley and John Walker. National Gallery of Art, Washington, 1942: 10, as Italian or German 16th Century, Covered vase of rock crystal.
- Wilson, Carolyn C. Renaissance Small Bronze Sculpture and Associated Decorative Arts at the National Gallery of Art. Washington, 1983: p.169.