A form of the Triquetra symbol which has the exact geometrical proportions to be composed of three overlapping Vesica piscis symbols — something which is important to a few authors of books on Christian symbolism.  (Ribbons version.)  For other versions of the triquetra, see also Image:Triquetra-Vesica-solid.png , Image:Triquetra-Double.png , Image:Triquetra-Interlaced-Triangle-Circle.png , Image:Triquetra-tightly-knotted.png , and Image:Triquetra-circle-interlaced.png .  The six curve-intersection points define four small equilateral triangles, which make up one large equilateral triangle.  SVG converted from the following vector PostScript source code: &lt;pre&gt;%! /y
Triquetra-Vesica.svg
Triquetra-Vesica.svg: Martin Owens (doctormo)
derivative work: Doctormo (talk · contribs)