| (...) A submarine sailing on the surface can be targeted formidably. If she is submerged, aiming with attention and care, man has to fire at the pipe shaped part fitted with the mirror-like device. If the submarine fires a torpedo at your ship (when the torpedo is fired, then on the side from which it comes, it leaves a thick trace), immediately and at high speed, passing by the torpedo, sail towards the submarine and drop anchor on her. If in this way the anchor catches the propeller or rudder, then it immobilizes the submarine. (...) |
| Instruction of the Ottoman Inspectorate of Sea Mines and Costal Fortifications, released on January 31, 1915 and concerning the means of observation and fighting against submarines. |
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| A British sailor on board of E14 somewhere on the Marmara Sea (photo: Central News) |
| E7 returning from the mission to Constantinople. (photo: L’Illustration) |
| A perfect prove that some Turkish soldiers put the instruction quoted above into practice - the E7’s periscope hit by a small artillery shell. (photo: L’Illustration) |
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| A British submarine attacked by an Ottoman plane on the Marmara Sea, near Bolayir. (from Piotr Nykiel’s collection) |
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| E 15's crew in Turkish captivity. First from the right in the sitting row is Palmer Clarence, former British vice-consul in Canakkale who was on board during submarine's last mission (Kurtoglu). |
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| The commander of the AE2, Lt. Cdr. H. H. G. D. Stoker (on the right) and two other officers in captivity (Harp Umumi Panoramasi) |
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| The crew of French submarine Saphir in Turkish captivity (Harp Umumi Panoramasi) |
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| The funeral of Saphir's chief Bone was used by the Ottoman propaganda. The ceremony was done by the Greek pope and three members of the crew were present (Harp Mecmuasi) |