This is a rare Vintage Texas Instruments SR-51 Calculator Serial # 0029765. The unit is untested and sold AS-IS. The calculator has the original rechargeable battery pack and there are no cracks or broken plastic. The unit does have a name etched on the back and inside the battery compartment. Please look closely at the pics for an exact description. The Calculator you see is the calculator you will receive.

The unit is sold AS-IS NO RETURNS