Numberaid Teaching Abacus
date: label: date made
content: 1960-1961
name: label: maker
content: Tools for Education Inc.
notes: label: Description
content: This teaching abacus consists of a plastic frame with five columns of brightly colored translucent plastic beads, held together by shaped metal pieces. A crosspiece divides each column into two upper beads and nine lower beads. Beads above the crosspiece have five times the value of beads below.
label: Description
content: A mark on the front of the object reads: Numberaid
label: Description
content: A paper booklet received in by cardboard box with the abacus is marked: Numberaid (/) THE AMERICAN ABACUS (/) Guidebook (/) FOR PARENTS. It is copyrighted in 1955 and 1960. A newspaper photograph showing the donor working with Numberaid has the date June 1, 1961; hence the date assigned.
label: Description
content: The instrument and guidebook fit into a cardboard box.
label: Description
content: For the related newspaper article, see 2015.0170.02.
label: Location
content: Currently not on view
place: label: place made
content: United States: Wisconsin, Burlington
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Abacus
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Debra Weise
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2015.0170.01
label: accession number
content: 2015.0170
label: catalog number
content: 2015.0170.01
objectType: label: Object Name
content: abacus
physicalDescription: label: Physical Description
content: plastic (frame, beads material)
label: Physical Description
content: paper (instructions, box material)
label: Measurements
content: overall: 3 cm x 12.2 cm x 12.6 cm; 1 3/16 in x 4 13/16 in x 4 31/32 in