United States Post Office Cards
name: label: Series Creator
content: Warshaw, Isadore, 1900-1969
setName: label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Postcards
label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Postcards / 2: Postcards
unitdate: label: Date
content: 1870s-1946; undated
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0060.S01.01.Postcards, Subseries 2.2
objectType: label: Type
content: Archival materials