<a href="https://en.wikipedia.org/wiki/Ordnance_Survey" class="extiw" title="w:Ordnance Survey">Ordnance Survey</a> map showing <a href="https://en.wikipedia.org/wiki/City_Road_tube_station" class="extiw" title="w:City Road tube station">City Road</a> station on the <a href="https://en.wikipedia.org/wiki/City_and_South_London_Railway" class="extiw" title="w:City and South London Railway">City and South London Railway</a>. Original map scale: 25 inches to One Mile/880 feet to One Inch.
<a href="https://en.wikipedia.org/wiki/Ordnance_Survey" class="extiw" title="w:Ordnance Survey">Ordnance Survey</a>
<a href="https://en.wikipedia.org/wiki/Ordnance_Survey" class="extiw" title="w:Ordnance Survey">Ordnance Survey</a>. London (1916 Numbered Sheets V.6). Public Domain as published more than 50 years ago.