This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Unicorno De l'arithmetica universale .tif Book Unicorno Giuseppe De l'arithmetica universale appresso Francesco de' Franceschi In Venetia ita it De l'arithmetica vniuersale del sig Ioseppo Vnicorno mathematico Parte prima seconda In Venetia appresso Francesco de' Franceschi In Venetia appresso Francesco de' Franceschi Senese