Cockpit of <a href="https://en.wikipedia.org/wiki/DC-9" class="extiw" title="wikipedia:DC-9">DC-9-40</a> (reg. 9760) belonging to <a href="https://en.wikipedia.org/wiki/Northwest_Airlines" class="extiw" title="wikipedia:Northwest Airlines">Northwest Airlines</a>. Picture taken on the ground at Port Columbus Intl. airport, Columbus, Ohio
Dmitry Denisenkov (<a href="//commons.wikimedia.org/wiki/User:Canwolf" title="User:Canwolf">Canwolf</a>)
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>