This vintage Hewlett Packard HP 20S Scientific Calculator from 1987 is a real gem for any collector or enthusiast. It has been tested and is in working order, ready to be used for its intended purpose or displayed as a unique piece of history. The calculator comes with its original case, adding to its overall value and charm. Defect on a screen. Would be in a perfect condition if not a stain on a screen, it’s fully functional, working good.
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