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:
Zoso John Paul Jones sigil interlaced triquetra overlaying circle.svg Rudolf Koch's book The Book of Signs Koch died The original symbol was used in Led Zeppelin IV Zoso svg cropped from source original likely from or earlier freakofnurture derived source unknown creator of original other versions thumb left Original source