Nate MacKinnon Signed Funko Pop! #53 Colorado Avalanche JSA 43462 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a Colorado Avalanche Funko Pop! #53 that was personally autographed by Nathan MacKinnon. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.