E23 was built by Vickers, Barrow-in-Furness. She was laid down on the 28 September 1914 and was commissioned on 6 December 1915. The E class served with the Royal Navy throughout World War I as the backbone of the submarine fleet and were eventually replaced by the British L class submarine. All the E class submarines were withdrawn from service by 1922. E23 torpedoed the German dreadnought SMS Westfalen (18,900 tons), holing her off Terschelling on 19 August 1916. E23 was sold on 6 September 1922.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/59759366@N02">Harwich &amp; Dovercourt</a> from Dovercourt, United Kingdom
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/harwichs/5721288847/">E23</a>