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:
Bitruncated polychoron verf. Truncated polychoron vertex figure Transferred from org en transferred to Commons by User Sreejithk using de php CommonsHelper br Original text created this work entirely by myself original upload date Tom Ruen talk Original uploader was Tomruen at org en Released into the public domain