I did some searching but, unfortunately, didn't find a lot of useful information.
Here's a link to a few photographs of ships:http://www.cbrnp.com/RNP/Flower/GALLERY/postwar_Italian.htm
And this is the Italian Navy (Regia Marina Italiana)http://www.regiamarina.net/detail_text.asp?nid=9&lid=1
On the left side of the screen, click History, and then you'll see a link for Merchant Marine. It opens to the Introduction page, and you'll have to use the drop-down at the top of page to navigate.
There doesn't appear to be a lot of information online, but maybe you can check some of the references on the Italian Navy Wikipedia page: http://en.wikipedia.org/wiki/Italian_Navy