Belsize Park Underground station, Northern line. Station designed by architect Leslie Green. Image taken shortly after the station opened on 22 June 1907.
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external free" href="https://www.ltmuseum.co.uk/collections/collections-online/photographs/item/2000-23061">https://www.ltmuseum.co.uk/collections/collections-online/photographs/item/2000-23061</a>