EIIR double aperture box L1 1000 and L1001 type C by Machan Engineering on Houghton Street, Liverpool.
<a href="//commons.wikimedia.org/wiki/User:Rodhullandemu" title="User:Rodhullandemu">Rodhullandemu</a>
Attribution
<span class="int-own-work" lang="en">Own work</span>