A photo of the PB/5 pedestrian button, showing the metal button below the blue metal plate that acts as a speaker and tactile surface
<a href="//commons.wikimedia.org/w/index.php?title=User:Iamthinking2202&amp;action=edit&amp;redlink=1" class="new" title="User:Iamthinking2202 (page does not exist)">Iamthinking2202</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>