HMS K9 was a K class submarine built by Vickers, Barrow-in-Furness. K9 was laid down on 28 June 1915. She was commissioned on 9 May 1917. In 1921, K9 was placed in reserve. K9 was sold in Charlestown on 23 July 1926.
| Graph IRI | Count |
|---|---|
| http://dbkwik.webdatacommons.org | 18 |
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