Email some detail photos to Continental. If their tires are being counterfeited they'll know about it, or want to know, and may ask for photos of specific parts that are harder to counterfeit at a lower price.
Usually the first things I examine on tires is the tread and inside surface for any irregularities. I barely look at the lettering or graphics. Old habit from years of using film. There's a persistent urban myth among n00bs to film photography that the markings in the margin or rebate are reliable evidence of the authenticity or quality of the film emulsion. Not so.