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:
Doubleheartknot crossings.svg An ornamental knot in the shape of one heart enclosing another For another form of the doubleheart knot see File Doubleheartknotcrossings svg Selfmade graphic generated from version of the following vector PostScript source code translate stroke def setrgbcolor setlinewidth arcn lineto