A model 110 double Wagner tuba in F/Bb, built by Gebr. Alexander Mainz. Rhein. Musikinstrumentenfabrik GmbH (Mainz, Germany).
<a href="//commons.wikimedia.org/w/index.php?title=User:Zanetta&amp;action=edit&amp;redlink=1" class="new" title="User:Zanetta (page does not exist)">Zanetta</a>
2010-03-16
<span class="int-own-work" lang="en">Own work</span>