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Naval Construction and Armaments Co of Barrow-in-Furness were shipbuilders.
1867 Works laid out by the Barrow Shipbuilding Co
1873 First vessel launched.
1886 launched the pioneer submarine, Nordenfelt IV.
1888 The new Naval Construction and Armaments Co had entered agreements with Nordenfelt Co for the supply of machine guns; they would also make use of Nordenfelt's arrangements in other countries to obtain orders for fully armed ships; also acquired Mr T Nordenfelt's patents in Great Britain for submarine torpedo boats, two of which had already been built at Barrow.
1888 The Barrow Shipbuilding Co was taken over by the Naval Construction and Armaments Co, which began the manufacture of naval armaments. Over 100 vessels of all types had been constructed by this firm.
1889 - 1892 They constructed six vessels, Binnie, Barrow, Belvedere, Bazalgette, Burns and Barking which were used to carry London's processed sewage, known as sludge, from the treatment plants at Crossness and Barking out into the Thames Estuary where it was dumped at Barrow Deep and Black Deep. Each had a carrying capacity of 1,000 tons. 
1890 Her Majesty's Armoured Cruiser Latona