The Delta Sentinelesi (Limited Edition) fountain pen is part of Delta's Indigenous Peoples series, honoring the Sentinelese, an enigmatic and isolated ethnic group residing on the island of North Sentinel. The design reflects the colors of the island and features a clip inspired by its hunting weapons, with 24-karat gold details. The 14-karat gold nib is engraved with the geographical shape of the island and the filling system is through a piston mechanism. The edition is limited to 388 pieces worldwide.