Physical Dimensions: overall: 26.8 x 17.8 cm (10 9/16 x 7 in.)
Provenance: Hon. Irwin Boyle Laughlin, Washington, D.C.; his wife, Therese Iselin Laughlin, Washington, D.C., 1941; their daughter, Gertrude Laughlin Chanler, New York, 1958; gift to NGA, 2000.