[submarine] U.S. Air Force image from Vandenberg AFB, California. http://www.vandenberg.af.mil/photos/media_search.asp?q=fps-16 ... Found on http://en.wikipedia.org/wiki/Delfin_(submarine)
The Delfin was a Russian Lin Class coastal defence submarine of 500 tons displacement launched in 1935. The Delfin had a top speed of 19 knots surface; 9 knots submerged. She was armed with one 1 pdr anti-aircraft gun; four 21 inch torpedo tubes. Found on http://www.probertencyclopaedia.com/browse/RD.HTM