a pentagram or "Alvkors" ("elf-cross")
The original uploader was <a href="https://en.wikipedia.org/wiki/User:Berig" class="extiw" title="wikipedia:User:Berig">Berig</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>.
14 May 2007 (original upload date)
<p>Nordisk familjebok / Uggleupplagan. 1. A - Armati / 
</p>
557-558  <a rel="nofollow" class="external free" href="http://runeberg.org/nfba/0313.html">http://runeberg.org/nfba/0313.html</a> Originally from <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a>; description page is/was <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Image%3AAlvkors.png">here</a>.