Comet of 1861 as seen from Portsmouth Harbour. From a magazine article, <i>Once a Week</i>, volume 5, page 139.
<bdi><a href="https://en.wikipedia.org/wiki/en:Joseph_Swain_(engraver)" class="extiw" title="w:en:Joseph Swain (engraver)"><span title="British engraver (1820-1909)">Joseph Swain</span></a> and workshop
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1861-07-27
<a rel="nofollow" class="external text" href="https://archive.org/details/onceweek05londuoft/page/139">Internet Archive</a>