I bought these on Mercari a couple months ago and was wondering if they are authentic. I bought them all from the same seller. The seller claimed these were included in a lot of autographs he bought from a collector a couple of years ago. They said the collector got all the autographs signed in person. There seems to be some validity to their claims based on the seller's other listings. The year of the cards listed range from 1985 to 2015. They also have listed some autographs on photographs. The autographs vary from the most popular wrestlers and legends to wrestlers that are not as popular or well known. Prices also vary.

I know I should of done more research before I bought them, but I am a big Eddie Guerrero fan and got excited when I saw them.

As far as third party authentication, are there any recommendations, any companies that specialize in wrestlers or Eddie Guerrero specifically? 

Any information would be greatly appreciated!