A whole plate negative. A fair quality port very near broadside view, taken from only just abaft the beam, of the passenger/cargo liner Dublin Castle (1877) at moorings in Gravesend Reach, River Thames. She has an auxiliary brig rig with two yards on each mast and is flying the blue peter. She has an awning rigged aft and a two funnelled Watkins tug is alongside her starboard side forward. Tilbury is in the background.