8" Loudspeaker
Günther Nubert (<a rel="nofollow" class="external text" href="http://www.nubert.de/">Nubert Speaker Factory</a>)
<a href="https://de.wikipedia.org/wiki/Image:8zollhinten.JPG" class="extiw" title="de:Image:8zollhinten.JPG">German Wikipedia</a>