Assassin Kukri

The Assassin Kukri was a kukri obtained by Jacob and Evie Frye during the nineteenth century. It was an improved version of the blade wielded by Initiates, only meant for Assassins. With its serrated edge, this blade was lighter, sharper, and deadlier than the one wielded by those of a lower rank. The Frye twins could obtain this kukri by crafting it for themselves.

Reference

 * Assassin's Creed: Syndicate