Suan-p'an, or Chinese Abacus (Double)
date: label: date made
content: about 1975
notes: label: Description
content: This double abacus has a wooden frame with 25 columns of wooden beads which slide on bamboo rods. It apparently was designed for use by two people at once. Each rod has 14 beads. A relatively thick wooden cross piece down the center divides the beads into groups of seven. Two thinner cross pieces divide the groups of seven into groups of two and five.
label: Description
content: Metal brackets hold the instrument together at the corner, with two wooden supports at the back. Holes drilled at one end hold loops of green plastic twine that are held together with a small metal ring and allow the instrument to be mounted on a wall.
label: Description
content: The three characters carved on the center of the cross piece represent general words such as “happiness” or “wisdom.” The loops and the orientation of the characters suggest that the instrument was sold as much as a wall ornament as a practical device.
label: Description
content: The donor received the abacus as a gift from Simon Newman, Deputy Director of Research and Development of the U.S. Patent Office. Mr. Newman died in 1985. He had traveled in Hong Kong.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Abacus
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Rose Sachs
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1997.0106.01
label: catalog number
content: 1997.0106.01
label: accession number
content: 1997.0106
objectType: label: Object Name
content: abacus
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: bamboo (overall material)
label: Physical Description
content: plastic (overall material)
label: Measurements
content: overall: 3.7 cm x 31.6 cm x 68.8 cm; 1 15/32 in x 12 7/16 in x 27 3/32 in