Tumi

The tumi is a sharp-bladed implement of the Central Andes, made from stone or metal and used from the pre-Columbian era into the colonial period, roughly 750 to 1470 AD for its best-known examples. Beyond its role as a kitchen and agricultural tool, it served as a secondary weapon for warriors and hunters as well as a sacrificial knife, with the most recognizable ornate, semicircular-bladed examples produced by the Sican and Chimu cultures of northern Peru. The most elaborate ceremonial tumis were made of soft metals unsuited to actual cutting, marking them as ritual objects for elite use, while harder plainer versions served practical and combat purposes. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/