The last regular sea service of the armoured broadside frigate 'Black Prince' (1861) ended in 1878. She was in Fleet Reserve at Plymouth 1878-96, mostly at moorings, but went to sea for annual manoeuvres. She was reclassified an armoured cruiser in 1881, then converted for use as a static training ship and in 1899 moved to Queenstown where she remained until 1910 (renamed 'Emerald' in 1903 to release the name for a new armoured cruiser). In 1910 she returned to Plymouth as the hulk 'Impregnable III' and was broken up in 1923. This image, looking forward and to port from her poop, will be one of her annual sea trips in the 1879 to 1896 period and is likely to have been made when Wyllie was on board when the ship was exercising on the coast of Donegal in 1889. It is one of three drawing of the ship probably made at that time PAE2656, 3140 and 3479. [BT/PvdM 11/18]