A sign pointing commuters toward the <a href="https://en.wikipedia.org/wiki/7_(New_York_City_Subway_service)" class="extiw" title="w:7 (New York City Subway service)">Number 7 Train</a>, a.k.a.; <a href="https://en.wikipedia.org/wiki/IRT_Flushing_Line" class="extiw" title="w:IRT Flushing Line">IRT Flushing Line</a> Platforms at <a href="https://en.wikipedia.org/wiki/Grand_Central_Terminal" class="extiw" title="w:Grand Central Terminal">Grand Central Terminal</a>. One more staircase after this sign, and you're ready for the IRT Flushing Line.
<a href="//commons.wikimedia.org/wiki/User:DanTD" title="User:DanTD">DanTD</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>