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:
Celticknotbasicrectangular. Celticknotbasicrectangular svg One basic form of Celtic or pseudoCeltic rectangular knotwork For alternative forms see Image Celticknotbasic svg Image Celticknotbasiclinear svg Image Celticknottwoloopsbigends svg and Image Barknotbasicdecorative For variant forms of basic pseudo Celtic knotwork cross