Caption= "This unusual photograph shows tho interior of a British submarine operating in the war zone. The officer in command is looking through the periscope for possible prey. At the left a steering wheel is seen."
The Ogden standard
<a rel="nofollow" class="external text" href="https://chroniclingamerica.loc.gov/lccn/sn85058396/1915-09-13/ed-1/seq-1/">The Ogden standard. September 13, 1915</a>