Eastern lock of the Chesapeake and Delaware Canal (now out of use).  The Van Amringe house in the background. Listed as the Eastern Lock of the Chesapeake and Delaware Canal on the NRHP since April 21, 1975, in Battery Park, Delaware City, Delaware.
<a href="//commons.wikimedia.org/wiki/User:Smallbones" title="User:Smallbones">Smallbones</a>
<span class="int-own-work" lang="en">Own work</span>