Extremely rare Earl Campbell Houston Oilers authentic original 1980s era Sand Knit size SMALL jersey with stitched-on double layer cloth tackle twill name and numbers autographed on the back 4 in blue Sharpie and inscribed HOF 91. From a signing authenticated by Schwartz Sports with their numbered hologram on the jersey and certificate of authenticity card. As shown on ESPN Outside the Lines, the vast majority of NFL jerseys sold on the internet are cheap counterfeits made in Asia with vinyl numbers made to look like cloth which is why the numbers look shiny and/or wrinkly. This is a REAL Sand Knit jersey stitched in the United States. ONLY ONE AVAILABLE FOR SALE.