*RARE* Vintage Desktop Red LED Computer Calculator Texas Instruments SR-22 WORKS

Description

First thing's first, I am definitely not smart enough to understand this calculator.  That being said, I have turned it on, tested each button and found them all to be working. I do not accept returns unless there is something seriously wrong. So, for both of our sakes, if you have any specific questions or would like me to perform some sort of calculation to further test it, please send a message before purchasing.  I will happily do so and send you images. Some keys have some light paint wear, mainly the Hex and Dec. You may want to further clean the keys. I have given them a light wipe down with a damp cloth. It will be shipped Priority, carefully packed, and insured. Please see images for details and feel free to ask questions. Thank you!