She was begun for a Dutch Navy order, as Z-1 (along with three sister ships Z-2 – Z-4), but after the outbreak of World War I she was confiscated by Germany and commissioned as torpedo boat V-105.

During a division of the German ships after the war in December 1919, Poland was assigned only six torpedo boats, due to a reluctance of the British to strengthen newborn navies.

[2] V-105 was first assigned to Brazil, but then bought by a British dockyard and finally in 1921 exchanged with Poland for another torpedo boat (A-69), needed for spares, for extra charge £900 from the Poles.

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.

[3] On the first day of World War II, September 1, 1939, ORP Mazur, commanded by Lieutenant Tadeusz Rutkowski, was in a port of Oksywie.