Object Details
- distributor
- Adding Wonder Manufacturers
- Adding Wonder Manufacturers
- 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.
- Location
- Currently not on view
- Credit Line
- Gift of Victor Comptometer Corporation
- ca 1925
- ID Number
- MA.323626
- catalog number
- 323626
- accession 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
- place made
- United States: Washington, Spokane
- place distributed
- United States: Washington, Spokane
- See more items in
- Medicine and Science: Mathematics
- Adder
- Science & Mathematics
- National Museum of American History
- Subject
- Mathematics
- Record ID
- nmah_690247
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a5-14c7-704b-e053-15f76fa0b4fa
