Accession Number: 2006.7.2
Description: Tokyo-style abacus, designed for and used by blind students, has a wooden frame with enclosed back. 20 columns have been created by placing 19 wooden dividers in the frame. Five wire rods, placed in rows through the column dividers, hold lever-shaped counters that are arranged 1 above the bar and 4 below. Counters are made of wood and flip back and forth. Five large and five small smooth-brass pinheads serve as markers along the bottom edge of the frame. A paper label on the back, at left, is incscribed in print "No. 16 1. The Tokyo School for the Blind."
Height: 3.25
Width: 12
Depth: 0.75
Date Made: [n.d.]
Place of Origin: Japan
Collection: Gissoni Abacus Collection
History/Provenance: Gissoni Abacus Collection
Credit Line: Gift of Fred Gissoni, 2006.7
Subjects: Abacus Mathematical instruments Instructional aids, tools, and supplies
Material: Wood, metal
Updated: 05/04/2011
