Sam Darnold New York Jets Signed Autograohed JSA Full Size Speed Replica Helmet. Possible Rookie of the Year? JSA Number can be researched online to verify authenticity. The item "Sam Darnold New York Jets Signed Autograohed JSA Full Size Speed Replica Helmet" is in sale since Thursday, December 6, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Football-NFL\Helmets".The seller is "southernsports" and is located in New Orleans, Louisiana. This item can be shipped worldwide.