as far as I know there are 2 types of handbrake handle, a complete handle ( wooden all round , underneath as well ) , or a handbrake 'ring' where the wooden section covers just the top of the handle and around the button.
P/ns are :-
34 41 2 499 101 - cover / ring style
82 25 9 415 381 - whole handle style
these are for trim option 438.
if you give your dealer these p/n , he should be able to bring up a picture for you.