A pencil drawing of 'Grampus', an ex-Admiralty 50-gun vessel allocated as a hospital ship to the (merchant) Seamen's Hospital Society in 1821, moored between Greenwich and Deptford. She was subsequently replaced by the larger 'Dreadnought' in 1827 and the Caledonia (renamed Dreadnought) in 1857. In 1870 the facility moved ashore into the former infirmary of Greenwich Hospital, which finally closed as a residential naval almshouse in 1869. The infirmary continued in seamen's hospital use until 1986 and is today the Dreadnought Building of the University of Greenwich.