The logo of <a href="//commons.wikimedia.org/wiki/Caltrain" title="Caltrain">Caltrain</a>'s <a href="https://en.wikipedia.org/wiki/Proof-of-payment" class="extiw" title="w:Proof-of-payment">proof-of-payment</a> system. This logo is posted prominently on station signage and also appears in Caltrain publications.
<a href="//commons.wikimedia.org/wiki/Caltrain" title="Caltrain">Peninsula Corridor Joint Powers Board</a>
<a rel="nofollow" class="external text" href="http://www.caltrain.com/Assets/Assets/Schedules/Full-Timetable_10012017.pdf">Caltrain timetable effective October 1, 2017</a>