Double Khipu found in Inkawasi, Cañete

Double Khipu
A series of joined khipus containing similar records, such as those exhibited here, could suggest a type of accounting system, similar to credit and debit transactions in today’s financial system. During Inkan times, these khipus were likely used to record things such as the number of people who had to perform a work shift vs. the number of people who had already done their shift, or food produced vs. food consumed, among other uses. According to one historical account, there was an event during the Conquista in which Pizarro and his men were removing goods from a royal storehouse, while the Inka administrator looked on, recording everything on a khipu by untying knots in one section of the khipu and retying them in another.