Markoa Corporation (consumer survey on plastic toy trains)
name: label: Collection Creator
content: Duncan, Donald F., Jr.
label: Collection Creator
content: Duncan Yo-Yo Company.
setName: label: See more items in
content: Duncan Family Yo-yo Collection
label: See more items in
content: Duncan Family Yo-yo Collection / Series 3: YO-YO's / 3.8: Competitors
unitdate: label: Date
content: 1964
container: label: Container
content: Box 21, Folder 29
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials