![]() ![]() The beads are similar in shape to those on other Japanese abaci. Each has one bead above the cross piece and five below. Twenty-one parallel bamboo rods rods pass through the cross piece. It has a wooden cross piece painted white. Soroban, or Japanese Abacus Description This instrument sits in a wooden box painted black around the edge. Location Currently not on view date made 1959 ID Number MA.335485 catalog number 335485 accession number 321674 Data Source National Museum of American History Albree put the instrument aside, and returned to using logarithmic tables for multiplication and division. However, the beads were too small for his seventy-year-old fingers and thumb. He found addition and subtraction straightforward and bought this larger instrument to try multiplication and division. According to the donor, his first introduction to the soroban was in 1958. Norman Albree, along with several circular slide rules of his design. The instrument was given to the Smithsonian by G. The abacus is stored in a cardboard box covered with decorated paper. ![]() Every fifth column is marked with a white dot. The central column has two black dots and a red dot as well. Every third column of beads is marked with a black dot on the cross piece. On each rod, there is one bead above the cross piece and four below. Twenty-three parallel wooden rods hold the beads. Soroban, or Japanese Abacus Description This abacus has an open wooden frame painted black and a wooden cross piece with an inset white strip on top. Location Currently not on view Date made ca 1885 ID Number 1979.0876.04 catalog number 1979.0876.04 accession number 1979.0876 Data Source National Museum of American History Tetsu Tamura as a schoolboy from 1885 to 1897 and presented to Cleveland Abbe in 1906. A paper sheet received with the abacus indicates that it was used by Dr. The base of the box contains a large container with hardened black ink, a smaller container with red ink, additional bars of red and black ink, and a brush for drawing characters. The shape of the beads is like that of other Japanese abaci. The beads of the abacus move on 13 parallel bamboo rods, with one bead above the cross bar and five below. Columns 8 through 13 are labeled in units of Japanese currency. Columns 1 to 6 are labeled in units of volume used to measure rice. A wooden cross bar colored white is painted with various characters labeling various columns of the abacus. Soroban, or Japanese Abacus Description This Japanese abacus is in the lid of a rosewood box. ![]()
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