This handheld electronic calculator has a metal case and twenty-four rectangular plastic keys. These include ten digit keys, a decimal point key, a total key, four arithmetic function keys, three memory keys, a percentage key, a square root key, an off key, an on/clear key, and a clear entry key. Behind the keyboard is an eight-digit LCD display. A mark below the keyboard reads: Unisonic LC 270.
A mark printed on the back reads: Unisonic LC 270 (/) 1.5V BATTERY x 2 PCS. (/) EVERREADY BATTERY NO. 189 (/) SERIAL NO. 5673107 (/) MADE IN TAIWAN R. O. C.
For information about Unisonic, see 1986.0988.371.
References:
[Advertisement], Fort Hood Sentinel, December 17, 1981, p. 3A. Unisonic LC270 and Unisonic LC222 calculators advertised as on sale for $7.88, regularly $12.95.
[Advertisement], Tonawanda NY Evening News, April 14, 1982, p. 5. Both Unisonic LC270 and Unisonic LC222 calculators on sale for $6.96, regularly $8.99.
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.
If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.