A cut piece signed by United States Navy Seal Sniper Chris Kyle. The piece has been signed and inscribed, "It's our duty to serve those who serve us." The signature has been verified as Authentic by PSA/DNA and encapsulated. Following his time in the military, Kyle published his memoir, titled American Sniper, in 2009. The book was later adapted into an award-winning film directed by Clint Eastwood and starring Bradley Cooper. Kyle was murdered in 2013 by a fellow military veteran who he was trying to aid.