. . "HMS E23 was a British E class submarine built by Vickers, Barrow-in-Furness. She was laid down on the 28 September 1914 and was commissioned on 6 December 1915."@en . . "HMS E23"@en . . . . . . . "--09-28"^^ . . . . . . "HMS E23 was a British E class submarine built by Vickers, Barrow-in-Furness. She was laid down on the 28 September 1914 and was commissioned on 6 December 1915."@en . .