Accession Number: 2007.29.25
Description: Black polystyrene frame, black panel in back secured with contact cement; thirteen steel rods filled with conical white nylon beads, four beads on each rod in the lower side of the frame and one in the upper area; friction pad below beads composed of clear plastic and a dark fabric; cast into frame in upper middle, "A.P.H."
Height: 4.5
Width: 8.25
Depth: 0.75
Date Made: ca. 1974
Maker: American Printing House for the Blind
Place of Origin: Louisville, KY
Collection: APH Collection
History/Provenance: APH Collection
Credit Line: APH Collection, 2007.29.
Subjects: Mathematics Arithmetic Blind Education Assistive technology Instructional aids, tools, and supplies Prototypes
Dimension Notes: overall
Made: American Printing House for the Blind
Material: Plastic, steel, cloth
Updated: 07/22/2015
