1888 plan of the <a href="https://en.wikipedia.org/wiki/Inner_Circle_(London_Underground)" class="extiw" title="w:Inner Circle (London Underground)">Inner Circle</a> of the London <a href="https://en.wikipedia.org/wiki/Metropolitan_District_Railway" class="extiw" title="w:Metropolitan District Railway">Metropolitan District Railway</a> and <a href="https://en.wikipedia.org/wiki/Metropolitan_Railway" class="extiw" title="w:Metropolitan Railway">Metropolitan Railway</a> companies, later to become the <a href="https://en.wikipedia.org/wiki/Circle_Line" class="extiw" title="w:Circle Line">Circle Line</a> of the <a href="https://en.wikipedia.org/wiki/London_Underground" class="extiw" title="w:London Underground">London Underground</a>.
1888<div style="display: none;">date QS:P571,+1888-00-00T00:00:00Z/9</div>
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