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Marlon Mack Autographed Colts Speed ProLine Helmet w/JSA COA

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  • Marlon Mack Autographed Indianapolis Colts Speed ProLine w/ JSA COA.
  • This signature is certified by James Spence Authentication Services.
  • It includes a tamper-proof sticker with matching serial numbers to the card. Certification can be verified and viewed through the third party's online database. 
  • This item was personally hand signed by Marlon Mack in blue sharpie.
  • At Ultimate Autographs we pride ourselves in selling authentic memorabilia and have a lifetime authenticity guarantee on All Items Sold. 

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