Proof Sheets
name: label: Collection Creator
content: Ayer (N W) Incorporated.
setName: label: See more items in
content: N W Ayer Advertising Agency Records
unitdate: label: Date
content: circa 1870-1930
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0059, Series 2
objectType: label: Type
content: Archival materials