First day covers/souvenir envelopes
name: label: Collection Collector
content: Orth, Edward J.
label: Collection Collector
content: Exhibition Collectors Historical Organization
setName: label: See more items in
content: Edward J. Orth Memorial Archives of the New York World's Fair
label: See more items in
content: Edward J. Orth Memorial Archives of the New York World's Fair / Series 6: Postcards / 6.11: By Type
unitdate: label: Date
content: 1939-1984
container: label: Container
content: Box 216
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials