This is Cola Partesian Bear – CPB for short. His name is a kind of a spoonerism on Polar Cartesian (my sister named him Cola and our mathematical brother had a hand in the second name). A cheap polar bear soft toy from the Royal Easter Show who lost most of his stuffing many years ago.
I did this sketch over 20 years ago and I am very impressed that I managed a perfect likness!
BTW, my big tidy up continues….amazing the things you find!