This is photo of an early 1970s <b><a href="https://en.wikipedia.org/wiki/en:Ampeg" class="extiw" title="w:en:Ampeg">Ampeg</a> Portaflex model B-15N</b>.
<a href="//commons.wikimedia.org/w/index.php?title=User:Madlee&amp;action=edit&amp;redlink=1" class="new" title="User:Madlee (page does not exist)">Madlee</a>
<span class="int-own-work" lang="en">Own work</span>