Master Assassin's Kukri

The Master Assassin's Kukri was a kukri obtained by Jacob and Evie Frye during the nineteenth century. This blade, decorated with gold and featuring the Assassin insignia, was only wielded by Master Assassins. The Frye twins received the blade from Henry Green as a token of gratitude for their help in weakening the Templars around London.

Reference

 * Assassin's Creed: Syndicate