I am selling my used 8 year old graphics calculator that I used in school. It is a Texas Instruments TI-83. These are top notch calculators and it looks like they still retail for £65-£90 today.
As you can see on the back cover there is a bit of a sticker mark that you could easily remove. Also IS57 has been scratched into the top of the back cover.
It is a well known graphics calculator and you can find plenty of reviews by searching online. It even has its own wikipedia page:http://en.wikipedia.org/wiki/TI-83_series
Unfortunately I don't have the box or instruction manual but you can download an instruction manual for it online:http://education.ti.com/calculators/downloads/UK/
It requires 4 AAA batteries (not included).
If you have any questions etc then ask away.
You can see more feedback for me on my ebay account name: richardm80.
payment via paypal or bank transfer. Will post first class recorded.