"Rms Mauretania (Also Known As The "Maury") Was An Ocean Liner Of The Cunard Line, Launched On 20 September 1906"
"At the time, she was the largest and fastest ship in the world. Mauretania became a favourite among her passengers. After capturing the Blue Riband for the fastest transatlantic crossing during her 1907 inaugural season, Mauretania held the speed record for 22 years."
It must be after 1945. It shows a policemen in Hamburg, Germany.
Those kind of uniforms are bought from the British to germany. Hamburg was in the british zone after WW II.
They used this kind of uniform till the early 80s in Hamburg.