For sale at a buy it now fixed price is this hard to find vintage calculator from National Semiconductor Corporation of Jordan Utah.  .  It is a 6 function calculator made in Japan.  It comes in the original leather case and with the original instructions.  We have put in new batteries .

This is used but in very good condition.  We find no scratches, cracks, damage of any kind, or wear.  We have performed a number of calculations using many of the functions and this calculator is performing flawlessly.  The case is in very good condition, although the two small vinyl corners that the bottom of the calculator fits into are broken.   :-)