Histogram of the Commons picture <a href="//commons.wikimedia.org/wiki/File:Sonoma_Dry_Jack.jpg" title="File:Sonoma Dry Jack.jpg">Sonoma Dry Jack</a> by the same author.
<a href="//commons.wikimedia.org/wiki/User:Frank_Schulenburg" title="User:Frank Schulenburg">Frank Schulenburg</a>
<span class="int-own-work" lang="en">Own work</span>