Tb 56T 1907 Delphin

23 Feb 1915 at Pola. 18 Mar to 12 Apr 1915 at Sebenico. 06 Jun 1915 mine laying off Spalato. 19 Aug 1915 at Pola. 08/09 Sep 1915 in action against Pelagosa; towed Tb 51T to Rogoznica.

10 Apr 1916 transferred from Spalato to Gjenovic for convoy duties between these two ports. 29 Jun 1916 minelaying off Cape Rodoni. 04 Oct 1916 to Pola.

1917 patrol duties in the Quarnero. 17/18 Apr 1917 searching for flying boat K188. From 13 Jul stationed in Rogoznica.

10 Feb 1918 took flying boat K177 in tow following emergency landing. 17 Mar 1918 took German UC74 under tow off Lesina, but U-boot was able to continue voyage to Pola. 10 Apr 1918 at Cattaro. 14 Apr 1918 towed from Sebenico to Pola by Tb 72F. 26 Apr 1918 at Pola for overhaul. 08 May 1918 from Pola to Cattaro for minesweeping and convoy duties.

To UK but b/u in Italy 1920.