If you want to look at previous game worn jerseys to compare, which should be exactly the same as an authentic, then check out my site:
http://northdakotahockey.weebly.com
Things to watch for is the "b" on Reebok's patch - fakes are an upside down "p", striping direction, conference patching, shoulder patches, and the color of the word "SIOUX". Sounds like a lot but if you have any question or issues in the future just ask!