ABOK #582 ("a lanyard knot" or Blimp knot) tied in bight on a loop closed by Zeppelin bend. Notice the similarity; The blimp knot is as if a Zeppelin bends ends are fused into the same central rope section crossing two loops. The additional ABOK #582 tied in the same bight (in the middle below) has a Z or S folded central rope section that makes it look like a double slipped zeppelin bend. This new knot will hold even if there is a weak spot on the central folded part.
<a href="//commons.wikimedia.org/wiki/User:Cobanyastigi" title="User:Cobanyastigi">Cobanyastigi</a>
<span class="int-own-work" lang="en">Own work</span>