Boost your collection of Minnesota Vikings memorabilia by picking up this Herschel Walker autographed Riddell Camo Alternate Speed Replica Helmet. The Vikings traded for Walker during the 1989 NFL season and he would go on to play with them for a little more than two years. In his first full year with the team in 1990, he rushed for 770 yards and five touchdowns on 184 attempts, while also adding 35 catches for 315 yards and four touchdowns. The next year, he put up 825 rushing yards and 10 touchdowns on 198 carries. You can highlight all that Walker accomplished with the Vikings by making this signed helmet part of your collection.