Contax T body cover release knob BROKEN


New Member
Hello everybody!
I've just joined this forum because I'm (almost) a proud contax user !

I'm waiting for a Contax T bought from ebay whit this problem:
(see attached image)
Body cover release knob is broken.

Now, is there anyone who has got a repair manual, a parts list or at least a picture of this knob that will help me solve this problem by myself?

(and sorry for my English)