Image of TGV cab signal (blinking) 300V (300kph, 270 or 220 possible ahead). Own work.
No machine-readable author provided. <a href="//commons.wikimedia.org/w/index.php?title=User:Madcap&amp;action=edit&amp;redlink=1" class="new" title="User:Madcap (page does not exist)">Madcap</a> assumed (based on copyright claims).
No machine-readable source provided. Own work assumed (based on copyright claims).