Yellow sign with black Helvetica lettering and black trim telling commuters where to board shuttle trains at the <a href="https://en.wikipedia.org/wiki/Eastchester-Dyre_Avenue_(IRT_Dyre_Avenue_Line)" class="extiw" title="w:Eastchester-Dyre Avenue (IRT Dyre Avenue Line)">Dyre Avenue</a>-bound platform on the <a href="https://en.wikipedia.org/wiki/Gun_Hill_Road_(IRT_Dyre_Avenue_Line)" class="extiw" title="w:Gun Hill Road (IRT Dyre Avenue Line)">Gun Hill Road Rapid Transit Station</a> along the <a href="https://en.wikipedia.org/wiki/IRT_Dyre_Avenue_Line" class="extiw" title="w:IRT Dyre Avenue Line">IRT Dyre Avenue Line</a> between the <a href="https://en.wikipedia.org/wiki/Allerton,_Bronx" class="extiw" title="w:Allerton, Bronx">Allerton</a> and <a href="https://en.wikipedia.org/wiki/Baychester,_Bronx" class="extiw" title="w:Baychester, Bronx">Baychester</a> sections of <a href="https://en.wikipedia.org/wiki/The_Bronx" class="extiw" title="w:The Bronx">The Bronx</a>, <a href="https://en.wikipedia.org/wiki/New_York_City" class="extiw" title="w:New York City">New York City</a>. I forgot that the Dyre Avenue Line still had shuttle trains after 1957, but either way, you still won't find very many signs in the New York Subway system as unique as this.
<a href="//commons.wikimedia.org/wiki/User:DanTD" title="User:DanTD">DanTD</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>