By A Mystery Man Writer
Used, very clean, untested. Includes calculator, case, original box, original manual.
Radio Shack Programmable Scientific Calculator EC-4021 w/ Box & Manual, UNTESTED
Radio Shack
RARE - Vintage Radio Shack EC-4000 Programmable Calculator - Case
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Vintage Radio Shack EC-425 Calculator 1975 / Charger + Box - Fully
RARE - Vintage Radio Shack EC-4000 Programmable Calculator - Case
In non working condition
RARE - Vintage Radio Shack EC-4000 Programmable Calculator - Case & Instructions
Vintage Radio Shack 10 Digit Scientific Calculator EC-4026 w/Case
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Rare 1975 Radio Shack EC-425 Calculator W/ Manual & Case Great