 "V-105" was in a bad condition and after some repairs in Rosyth, in September 1921 she was towed from Great Britain to Free City of Danzig, now Gdańsk.After a refit, she was commissioned in the Polish Navy on August 2, 1922, under the name ORP "Mazur" (named after the Mazurian people).She served in a torpedo boat unit ("Dywizjon Torpedowców") and wore identification letters MR.