This listing is for the single challenge coin pictured. From a retired US Navy admiral’s personal collection of challenge coins received individually over his career. Absolutely guaranteed original and authentic. Undoubtedly received in the palm with a handshake at Sugar Grove before it was decommissioned in 2015. I believe Navy Information Operations Command, Sugar Grove was established as part of the integration of NAVSECGRU functions into Naval Network Warfare Command in 2005 – 2006. The SECGRU Service Cryptologic element responsibilities were then performed by the Information Operations Directorate of NETWARCOM there until 2015. INTERNATIONAL BUYERS PLEASE TAKE NOTE!!