This handheld electronic calculator has a light tan plastic case and a gray plastic keyboard. It has an array of eighteen rectangular keys with rounded corners. These include ten digit keys and a decimal point key, keys for the four arithmetic functions, an equals/constant key, a percentage key, and a clear entry/clear key. The eight-digit LED display is behind the keyboard. The battery compartment opens from the back at the top. The device has two plastic feet. The socket for the adapter is on the right.
A mark on the front reads: MONTGOMERY (/) WARD ELECTRONIC P90. The paper tag on the back reads: WARDS P-90. It also reads: MODEL NO. DAN-8670A (/) SERIAL NO. 57X-003112 (/) Distributed By (/) Montgomery Ward & Co., Inc. (/) Chicago, Illinois 60671 (/) MADE IN JAPAN.
Compare 1986.0988.169, an APF Mark 40. The Ward P90 was made for Montgomery Ward by APF Electronics.
References:
Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 102.
Online Datamath Calculator Museum, accessed August 29, 2014.
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