Vintage Dior sweater. Real label, but fake sweater?

I recently purchased a John Galliano era Dior sweater and am having doubts about its authenticity. I am new to collecting vintage fashion pieces and want to make sure my collection is not comprised of any fakes. From what I can tell, the label looks real. What I am worried about is that the label might be attached to a fake sweater. I sincerely hope I am mistaken and that what I have is a true vintage piece, but I would love any advice/opinions on the matter.

The aspects that worry me are:

• The diagonal stitching of the label on the backside of the label
• The felt-like fabric on the inside of the sweater between the embroidered letters

I have attached photos and would love some expertise on the matter! Thank you all!

Photos:
http://brazenbabe.tumblr.com/post/181933507120

 

I am sorry, but we do not authenticate items.