"St Paul's Cathedral, Calcutta," hand-coloured photographic print, by Frederick Fiebig. Dated 1851. Courtesy of the <a href="https://en.wikipedia.org/wiki/British_Library" class="extiw" title="en:British Library">British Library</a>, London.
<bdi><a href="https://en.wikipedia.org/wiki/en:Frederick_Fiebig" class="extiw" title="w:en:Frederick Fiebig"><span title="German photographer">Frederick Fiebig</span></a>
</bdi>
<a href="//commons.wikimedia.org/wiki/Circa" title="Circa">c.</a>1851
British Library <a rel="nofollow" class="external autonumber" href="http://www.bl.uk/onlinegallery/onlineex/apac/photocoll/s/019pho0000247s1u00001000.html">[1]</a>