Texas Instruments TI-83 Graphing Calculator Black With Cover and a Zipper Case

You are looking at a 1997 TI 83 Graphing Calculator. It is black with it's original cover and is tested and working. Has an included working button cell battery. It takes a 1616 or a 1620 button cell. Also takes 4 AA batteries which will not be included. This was my calculator when I was in college and am including the fabric zipper case also. I think it is fake leather, I'm not sure. It has a felt interior with a pocket with open end for pens or small notebook if you're old school. The zipper case is actually not for this calculator but it fits snugly mostly to prevent scratches not necessarily from a fall. My dad gave it to me, I believe it's actually for the old red LCD TI calculator. My dad was a civil engineer from way back so may see it one of these days. It does have some surface scratches but is in otherwise good condition with a clean battery compartment. The zipper case does have discoloration in the bottom. Please ask questions before purchase. Thanks for looking!!