Boston Bruins Patrice Bergeron, Brad Marchand and David Pastrnak. The Perfection Line, signed hockey stick blade. Signed during an exclusive, private signing with Your Sports Memorabilia Store. Your Sports Memorabilia Store is the proud, exclusive provider of memorabilia for.Brad Marchand and Patrice Bergeron. Along with dozens of other NHL players!! Item comes with the exclusive "The Perfection Line" hologram and. The item "Patrice Bergeron Brad Marchand David Pastrnak Boston Bruins Signed Stick Blade" is in sale since Thursday, October 4, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Hockey-NHL\Sticks". The seller is "yoursportsmemorabiliastore" and is located in Sarasota, Florida. This item can be shipped worldwide.