Would like to know if my can is a Nebelung

Hi,

Got our cat 5 years ago. The mother is a Tonkinese so I know he wont be a Pure breed but he has a lot of the same looks and personalty as a Nebelung can anyone let me know if he has Nebelung in him? he has a silvery blue coat that shimmers, has yellow eyes with a green tinge to them, very shy around people expect me. not sure how to up load a picture if you could let me know so i can put one up for you to see.

thanks

Donnie Darko