Vintage RadioShack Calculator EC-5100 w/Box Not Tested Or Used In Some Time

Very little is known about this calculator which seems to be in great condition inside of its original box despite being unopened, untested, or used for quite some time. The device packaging indicates that at one point it was used and stored away. Remains of the RadioShack price tag is still on the right corner of this EC-5100 Business Calculator box and wear can be seen throughout the packaging but in fact fully