Sperry Remington 663 Handheld Electronic Calculator

This handheld electronic calculator has an aluminum and black plastic case and eighteen rounded rectangular plastic keys. These include ten digit keys, a decimal point key, four arithmetic function keys, a total key, a shift key (for seeing more of the answer) and a clear key. To the left of the top two keys is a switch for setting a constant. Behind the keyboard is a six-digit blue fluorescent display that could display twelve digits in two views. The on/off switch is on the left side and a power jack is along the back edge. A mark above the display reads: SPERRY REMINGTON 663.

The back of the calculator has a compartment for four AA batteries at the base. A sticker on the inside of the lid of the compartment reads: 2125680. A sticker on the inside of the compartment reads: 1021387. A sticker on the back of the calculator reads: SPERRY REMINGTON (/) MOD. 663 (/) BATTERY SUPPLY 1.5Vx4 (/) OR USE AC ADAPTOR AD-4145 (/) 0.6 W MADE IN JAPAN.

The calculator has a black plastic zippered case. Text on the front reads: SPERRY REMINGTON.

References:

[Advertisement], Chicago Tribune, March 7, 1974, p. A12. “The superb new Remington calculator” offered for $39.88.

According to the website of Casio Corporation, this was the Casio CM-603. However, that is quite a different calculator.

Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 146.

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