United States Specialized Catalog of First Day Covers
name: label: Series Creator
content: Warshaw, Isadore, 1900-1969
setName: label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Philately
label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Philately / 4: Publications / 4.2: Catalogs
unitdate: label: Date
content: 1938
container: label: Container
content: Box 1, Folder 16
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials