OK, so I went to the thrift store today after my exam and came across a jacket that may have been Christian Dior. I was unsure of the authenticity so I didn't buy it. The tag read "Christian Dior Coordonnes", which I have since found refers to a diffusion line from the mid-80's. The tag also said "Made in Taiwan"... I don't know if even a diffusion like would be made in Taiwan? Also the seams didn't seem terribly designer to me (they were rather unfinished), but it was also a linen jacket that was showing some wear!

So I have a dilemma. Does anyone know any resources for tips on authenticity? I've found some that refer to purses, but nothing for clothing.

Thanks!