I actually spent a lot of time (a couple of hours) yesterday seeing if I could find anything out for you on this on the Internet (no books, novice). I couldn't come up with anything at all. The only thing I could possibly suggest is that this might be Scandanavian/Danish Modern, or Modern (USA) School. I looked all through all kinds of archives for things and nothing Italian seemed to come up. But that is just my 2 cents for all it is worth (1/2 a cent?).