PTT Museum - Den Haag
name: label: Collection Creator
content: Held, John, 1947-
setName: label: See more items in
content: John Held papers relating to mail art
label: See more items in
content: John Held papers relating to mail art / Series 3: Letters / Holland
unitdate: label: Date
content: 1992
container: label: Container
content: Box 2, Folder 102
dataSource: label: Archival Repository
content: Archives of American Art
objectType: label: Type
content: Archival materials