A contrail photographed from the ground
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/133042043@N04">chemtrailchaser</a> from USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/133042043@N04/22113719175/">CT_2015.10.04_0992</a>