Opper, Frederick Burr
name: label: Collection Creator
content: Duveen, Albert
setName: label: See more items in
content: Albert Duveen collection of artists' letters and ephemera
label: See more items in
content: Albert Duveen collection of artists' letters and ephemera / Series 1: Letters
unitdate: label: Date
content: 1901-1917
container: label: Container
content: Box 1, Folder 91
dataSource: label: Archival Repository
content: Archives of American Art
objectType: label: Type
content: Archival materials