The M-I Line
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 2: Playmaxx / 2.12: Competitors
unitdate: label: Date
content: 1977
container: label: Container
content: Box 23, Folder 9
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials