GVIR wall box type B made by W.T. Allen of London at the now-closed post office in Thornton Hough, Wirral
<a href="//commons.wikimedia.org/wiki/User:Rodhullandemu" title="User:Rodhullandemu">Rodhullandemu</a>
Attribution
<span class="int-own-work" lang="en">Own work</span>