Metropolitan District Railway Mansion House 'solid red disc bullseye' station sign dating from 1912 at the London Transport Acton Depot Museum, 25 September 2021.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/58433307@N08">Hugh Llewelyn</a> from Keynsham, UK
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/camperdown/51539908639/">Mansion House Station Sign</a>