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:
Istituto Degasperi . sala geometri dell'Istituto Degasperi Transferred from org it transferred to Commons by User CristianNX using de php CommonsHelper br Original text opera propria original upload date Utente CristianNX Original uploader was CristianNX at org it Released into the public domain by the author br Original