Originally Posted by R Soul
The only goal left? If you don't have the proof it shouldn't be possible to complete the next goal (Find Baryn and swap the items). Are you saying you could do that? If so I'll need to look at your savegame file as soon as possible (easiest way is to make a quicksave and send me quick.sav).
To answer your question, in case the above was just a misunderstanding:
Clue:
Who would have the proof? Either Lady Whinford (she does own it) or someone else, possibly who knows about jewellery...
Answer:
It's in Lady Whinford's. Find a bureau and a key nearby.