Calculaid

Processor, Analog Data

Accession Number: 1995.14

Description: White plastic frame; ten (10) rows of rotating wheels, each marked with the braille numerals 0-9, arranged in 5 columns; addition, subtraction, and multiplication signs on wheel to left of each row; row of wheels permanently attached to the Calculaid board; frame at the top of the board designed to hold a Numberaid (an abacus also designed by Schott).

Date Made: ca. 1963

Maker: Schott, Andrew F.

Place of Origin: Louisville, KY

Collection: APH Collection

History/Provenance: APH Collection

Subjects: Instructional aids, tools, and supplies Mathematics

Made: American Printing House for the Blind

Material: Plastic

Updated: 05/30/2018