Yupana (Incan Counting Board)

This is one example of an Incan Yupana that dates between 1450-1532AD. These were likely counting boards used by Incas to calculate values recorded in their quipus( quipus are a system of record keeping that utilized strings and knots to hold number values and maybe even language). I have created 2 versions. One that looks more like the original artifact (Which itself is a plaster copy) and one that is what the board would have probably looked like without any damage.