Yes, a 202 SMM Spyder Nuvolari is what I was looking for; not its official title I'm sure but called that because it was built for him! It's actually said to be a one-off and is nicknamed, as you say, the Razzo.
The Cisitalia badge was missing, that's true, but what I was looking for was the Maserati badge on the grille, which is there for all to see on the picture you have posted!
Another point!