British. Allied service Perla was renamed P-712 and used by the Royal Navy to assess the level of development of Italian submarines. In 1943 she was transferred to the Hellenic Navy, who renamed her Matrozos with a pennant number of Υ-7. She served with the Hellenic Navy until 1947, when she was struck and later scrapped. Notes References Perla-class submarines World War II submarines of Italy Lost submarines of Italy 1936 ships Ships built by Cantieri Riuniti dell'Adriatico Ships built in Monfalcone