The Little Adding Wonder

Description:

This notched band adder has a wooden framework. Six paper bands move in six columns, showing the result in six windows. A paper sheet glued to the front has numerals and the name of the device, as well as cutouts to create the columns. A sheet glued to the back gives instructions. The columns widen at the top for carrying in addition and at the bottom for borrowing in subtraction. The object came to the Smithsonian from the collection of Felt and Tarrant Manufacturing Company. The date assigned is quite arbitrary.

Reference: P. Kidwell, “Adders Made and Used in the United States,” Rittenhouse, 1994, 8:78-96.

Date Made: ca 1925

Distributor: Adding Wonder ManufacturersMaker: Adding Wonder Manufacturers

Location: Currently not on view

Place Made: United States: Washington, SpokanePlace Distributed: United States: Washington, Spokane

Subject: Mathematics

Subject:

See more items in: Medicine and Science: Mathematics, Adder, Science & Mathematics

Exhibition:

Exhibition Location:

Credit Line: Gift of Victor Comptometer Corporation

Data Source: National Museum of American History

Id Number: MA.323626Catalog Number: 323626Accession Number: 250163

Object Name: adder

Physical Description: paper (overall material)wood (overall material)Measurements: overall: .6 cm x 8.6 cm x 20 cm; 1/4 in x 3 3/8 in x 7 7/8 in

Guid: http://n2t.net/ark:/65665/ng49ca746a5-14c7-704b-e053-15f76fa0b4fa

Record Id: nmah_690247

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