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Inca Khipu, Level 1
One of the knotted string objects called "khipu," used for record keeping in the Inka empire.Gary Urton
Colors of the Inca khipu
Khipu pendants showing three common types of multi-colored cords.Museum für Völkerkunde, Berlin, Germany. Photo (c) Gary Urton. VA#42554
Inca knot bands
Inca khipu showing bands of knots, indicating different numerical values.American Museum of Natural History, 41.2-6994. Photo (c) Gary Urton