Object Details
- Description
- Some simple adding machines were designed for consumers seeking to track their purchases. This small red plastic device has three white keys on top for entering dollars, dimes, and cents. The dollar wheel is numbered from 0 to 19. Pushing a key advances a wheel below one digit. Results appear in three windows on the front of the instrument. There is a carry. The instrument is held together by metal rivets. The mechanism is encased.
- The machine is marked: QUICK-ADDER. It is also marked: NO.6319 MADE IN HONG KONG. It is also marked: DESIGN REGD.
- In 1950, Theodore C. Romanchek (1897-1985) of Los Angeles took out a United States copyright for the term “quick adder.” From this date, and the general style of the object, it seems likely that it dates from the 1950s. It came to the Museum from the collection of John White.
- Location
- Currently not on view
- Credit Line
- Gift of John White
- 1950s
- ID Number
- 1981.0922.17
- accession number
- 1981.0922
- catalog number
- 1981.0922.17
- Object Name
- adding machine
- Physical Description
- plastic (overall material)
- metal (overall material)
- Measurements
- overall: 5.1 cm x 9.2 cm x 2 cm; 2 in x 3 5/8 in x 25/32 in
- place made
- China: Hong Kong
- See more items in
- Medicine and Science: Mathematics
- Adding Machines
- Science & Mathematics
- National Museum of American History
- Subject
- Mathematics
- Record ID
- nmah_690279
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a5-079b-704b-e053-15f76fa0b4fa
