I have no idea of his breed. He was given up for adoption by his family at age 5, and there was no information with him. He has Russian Blue colouring, but long haired. I did find a new breed called Nebelung, which is an attempt to reintroduce the long haired Russian Blue, and he has all of the characteristics, including head formation, and personality characteristics. The Nebelung description talks about the distinctive "pantaloons" and that is Sam for sure - he looks so cute walking away or running ahead of me up the stairs. I'll have to take a picture of his back end.http://www.catconnect.com/int/Portra...i_nebelung.htm
This description also mentions them being very intelligent, and that is where I begin to think that he is not a Nebelung after all. He may not be smart, but he's cute, so he gets away with a lot.
But who knows, he's just an adopted baby.