Texas Instruments TI 57 Vintage Programmable Calculator

Description

Texas Instruments TI-57 Programmable Calculator
Vintage late 1970s or early 1980s (initial release in 1977)
It's a first generation, with LED display (later ones had LCD display)
Serial number 0243307
Assembled in USA
Includes calculator and NiCd battery pack.  NO case or charger.
This unit is sold AS-IS.  For Parts or Repair.  It is untested.
The unit physically looks to be a pretty good example.
Minimal scuffs/scratches.  All four rubber pads are on bottom.
The removable NiCd battery pack is presumably toast.  You can see green crusties through the opening in the end of the pack, but nothing seems to have gone further into the calculator itself.  I've made no attempt to charge it.  The plastic of the battery case looks to be in good shape should you wish to crack it open and install new cells.
Shipped USPS First Class.
Sorry, no international shipments and no returns (unless damaged or significantly not as described)
Remember this is AS-IS, Parts or Repair.  Absolutely no return for non-functioning!
Thanks!