Vickers submarine his handed over to the Chilean Navy, Barrow-in-Furness, Cumbria.
Full titles read: "FOR THE CHILEAN NAVY - After undergoing successful trials - Vickers - built submarine - "Captain O'Brien" taken over by Chilean Naval Commission."
M/S of the submarine next to the dock. C/U of the name plate "O'BRIEN". L/S's several uniformed senior looking Naval Officers exiting hatchway on sub. L/S of Naval officials walking over ramp, others stand in line on the shore. M/S of man rasing flag on flagpole. L/S of the submarine crew saluting to the camera.