Montgomery Ward P8F Handheld Electronic Calculator

This handheld electronic calculator has a tan, black, and gray plastic case with seventeen plastic keys, fifteen of them square and two rectangular. In addition to ten digit keys and a decimal point key it has four arithmetic function keys, a clear key, and a clear entry key. A mark behind the keyboard reads: MONTGOMERY (/) WARD electronic P8F. Behind this is an eight-digit LED display. A jack for a power adapter is on the back edge and a switch is on the left side.

The back of the calculator has a compartment for four AA penlight batteries. A sticker on the compartment cover gives operating instructions. It is marked in part: Model No. TXI-8644A (/) Serial No. 37X-0007883 (/) DISTRIBUTED BY MONTGOMERY WARD & CO., INC. (/) CHICAGO, ILLINOIS 60607. The back has four rubber feet.

The "TXI" in the model number indicates that the calculator was made for Montgomery Ward by Texas Instruments.

References:

Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 101.

Online Datamath Calculator Museum, accessed August 29, 2014.

Currently not on view