Object Details
- Calfax
- Description
- This handheld electronic calculator has a plastic case with aluminum trim. The square plastic keys are indented at the middle (going from top to bottom). In addition to an array of ten digit keys and a decimal key, the calculator has keys for four arithmetic functions, a total key, a constant key, a red cancel key, and an on/off switch.
- Behind the keyboard is an eight-digit red LED display.
- A mark behind the display reads: calfax 820CD. A socket for an adapter is on the top edge. This example has no adapter.
- The battery compartment at the top of the back would hold two batteries. No batteries or cover for the compartment are in the present example. A tag on the back gives an “Operating Outline” for the calculator. It includes a mark at the bottom: Made in Hong Kong.
- The "calfax" mark on the calculator uses a trademark reportedly first used in commerce in 1972, filed in the United States January 1973, and registered in September 1975. No trademark registration is indicated on this example.
- No serial number found.
- Compare 1988.0988.20.
- Location
- Currently not on view
- Credit Line
- Gift of John B. Priser
- 1974-1975
- ID Number
- 1986.0988.021
- catalog number
- 1986.0988.021
- accession number
- 1986.0988
- Object Name
- electronic calculator
- Other Terms
- electronic calculator; Handheld
- Physical Description
- plastic (case; keys; display window material)
- metal (trim material)
- paper (sticker material)
- Measurements
- overall: 7/8 in x 3 in x 5 1/2 in; 2.2225 cm x 7.62 cm x 13.97 cm
- place made
- China: Hong Kong
- See more items in
- Medicine and Science: Computers
- Computers & Business Machines
- Handheld Electronic Calculators
- National Museum of American History
- Record ID
- nmah_334435
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a1-383d-704b-e053-15f76fa0b4fa
