Accession Number: 2009.6.16
Description: Rectangular black plastic frame with two rectangular cutouts in center; both cutouts lined with red felt; thirteen steel rods run vertically through both cutouts; lower rods each hold four (4) round white plastic moveable beads; upper rods each hold one (1) bead; beads are 7/16" diameter; cast into top frame, "APH"; raised bars and dots on frame divide beads into groups of three.
Height: 4.5
Width: 8.25
Depth: 1
Date Made: 1974
Maker: American Printing House for the Blind
Place of Origin: Louisville, KY
Collection: APH Collection
History/Provenance: APH Collection
Credit Line: APH Collection, 2009.6.
Subjects: Mathematics. Arithmetic. Blind. Education. Assistive technology Instructional aids, tools, and supplies. Abacus.
Dimension Notes: overall
Made: American Printing House for the Blind.
Material: Pastic, steel, wool
Updated: 04/23/2014
