Hello Darius,
Togo was actually "Gena 3". Gena 3 referring to the position she occupied as part of the Vigilanza Foranea (local patrol) in the the zone Genoa - La Spezia and thus not really the name of the boat. I have put this answer also on the AIDMEN forum. For example: Carla sunk by the Dutch submarine O.24 on 6 September 1941 was in Gena 5 position.
Best regards,
Platon