HMS Elfin (1933)
HMS Elfin (pennant number T25) was a torpedo recovery vessel built for the Royal Navy. She was built by J. Samuel White & Company, East Cowes, Isle of Wight, was launched on 20 November 1933 and commissioned on 16 January 1934. She was builder's number 1754. Her home port was the Navy's torpedo trials establishment HMS Vernon, and she was based at Portland. A sistership, , was constructed under builder's number 1753 and was stationed at HMS Defiance, Devonport. Elfin was renamed Nettle during the Second World War, and was later sold for scrapping. She survived in mercantile service, and has been preserved.

Wartime service
Elfin operated during the Second World War. In 1940 she was transferred to Blyth to become the depot ship for the 6th Submarine Flotilla, sharing her name with the submarine base there. She was replaced by the drifter Rotha in 1941 and transferred to the Clyde, being renamed HMS Nettle on 20 August 1941 and assigned pennant number T94.

Post war service 
After the war Nettle returned to Portland. By then the tender was operated by a civilian crew. Nettle was finally sold in 1957 to Pounds, Portsmouth for scrapping, but was sold a year later to the Amsterdam Dry-dock Company (ADM). While at Pounds's yard, she appeared in the film The Key.

Mercantile service and preservation
Converted to a tanker cleaning vessel, she continued in service for the ADM in Amsterdam harbour until 1985 as Droogdok 18, HOM7 and TCA1. She was transferred to a preservation society in 1995. The ship has been renamed Elfin, restored and preserved in Wormerveer, the Netherlands. In 2011 she was used in the Dutch film Bennie Stout.

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1933 ships
Submarine tenders
Ships built on the Isle of Wight
Ships and vessels on the National Archive of Historic Vessels