Dedication on the back reads: "Group of Red Navy sailors from the U-Boat "Sch-311" with its commander Vershinin, Hero of the Soviet Union. 1940"
Vershinin Fedor Grigoryevich (23.04.1905 - 29.02.1976), captain (naval), "captain 1st rank" in Russian. He was a commander of the "Sch-311" U-Boat from February 1938 (commander-in-chief from April 1937). Lieutenant commander Vershinin was awarded "The Hero of the Soviet Union" on February 07, 1940 for his bravery during the Soviet-Finnish war. Retired in December 1964, last position - senior staff scientist at the Military Naval Academy (June 1960-December 1964).