Image: Yupana 1
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Original image (1,280 × 960 pixels, file size: 291 KB, MIME type: image/png)
Description: An Incan yupuna, an instrument whose purpose is still unclear, though it may have been used for making arithmetic calculations.
Title: Yupana 1
Credit: Self-photographed
Author: Scarton
Permission: Trabajo propio
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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