September 4, 2019Sarah McMillan19th & 20th Century Prints & Drawings Collecting American Prints: Property from Betty & Douglas Duffy, of the Bethesda Art Gallery Read more about Collecting American Prints: Property from Betty & Douglas Duffy, of the Bethesda Art Gallery Swann Galleries’ sale of 19th & 20th Century Prints & Drawings on September 19 features property from Betty and Douglas Duffy, of the Bethesda Art Gallery and highlights American printmakers such as Howard Cook, Thomas Hart Benton, Rockwell Kent and John Sloan.