A decorative knot with 15 crossings and five-fold rotational symmetry (partly a variation on a design in <a href="https://en.wikipedia.org/wiki/George_Bain_(artist)" class="extiw" title="en:George Bain (artist)">George Bain</a>'s <i>Celtic Art: The Methods of Construction</i>, but changed from 6-fold symmetry to 5-fold symmetry and given rather different artistic rendering).
AnonMoos
<p>Self-made image, converted from a version of the following vector PostScript source code:
</p>
<pre>%!
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80.3444185 lineto 247.2746942 47.2746942 q mul add 80.3444185 80.3444185
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90 add/x exch def 260 x cos mul 260 x sin mul 1.5 0 360 arc fill}for 0 1
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fill}for showpage
%EOF</pre>