<div class="thumb tright"><div class="thumbinner" style="width:222px;"><a href="//commons.wikimedia.org/wiki/File:Beige_concertina_cube;_Hasse.png" class="image"><img alt="Beige concertina cube; Hasse.png" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Beige_concertina_cube%3B_Hasse.png/220px-Beige_concertina_cube%3B_Hasse.png" decoding="async" width="220" height="305" class="thumbimage" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Beige_concertina_cube%3B_Hasse.png/330px-Beige_concertina_cube%3B_Hasse.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Beige_concertina_cube%3B_Hasse.png/440px-Beige_concertina_cube%3B_Hasse.png 2x" data-file-width="3070" data-file-height="4255"></a>  <div class="thumbcaption"><div class="magnify"><a href="//commons.wikimedia.org/wiki/File:Beige_concertina_cube;_Hasse.png" class="internal" title="Enlarge"></a></div></div></div></div>
Concertina cube
<a href="//commons.wikimedia.org/w/index.php?title=User:TilmannR&amp;action=edit&amp;redlink=1" class="new" title="User:TilmannR (page does not exist)">TilmannR</a>
<span class="int-own-work" lang="en">Own work</span>