Kris as well as the emblem of the Cotabato Province. Kris depicted in several emblems as a symbol: Kris The kris (ngoko Javanese: ; krama inggil Javanese: ; ngoko: keris; krama; "dhuwung"; krama inggil: "wangkingan", lit. "to slice"; Jawi: کريس, Thai: กริช "krit", Minangkabau: "karih", Tagalog: "kalis"; Bugis and Makassarese: "sele") is an asymmetrical dagger with distinctive blade-patterning achieved through alternating laminations of iron and nickelous iron ("pamor"). Kris is most strongly associated with the culture of Indonesia. The kris is famous for its distinctive wavy blade, although many have straight blades as well. Kris have been produced in many regions
Kris of Knaud was believed to be lost, but it remained in the possession of Knaud's family. Long after Knaud's death, during World War II, his family buried the Keris in their garden to protect it during the Japanese occupation. During the Indonesian National Revolution, they took it to the Netherlands, where it was safeguarded in the family’s bank safe. In the 19th century, a plaster cast and a photograph of the kris were kept in the holdings of the Bataviaasch Museum of Arts and Archaeology. In 1920, N.J. Krom dedicated a full page to the keris in "Hindoe-Javaansche Kunst". David van Duuren