[iicarJohn]

Although it is disappointing to think that there is probably not much that is Alfa Romeo-related that is hidden in the signatures in the photograph, it seems to me that the Mussolini connection is enough to make this a topic of interest. One can never anticpate all the paths we must take in order to know more about our primary study areas!

I do fear, however, that a focused search for "Ciano" will perhaps lead you away from a more plausible explanation of who it was that signed the photograph either in the company of ... or in addition to Mussolini.

From the start, I've felt that I've seen the photo previously in some other context. So, I think that posting it on a few appropriate threads elsewhere (perhaps in Italy?) might give you some additional context about the Mussolini-centric aspect. You may get lucky and have someone respond about the as-yet-unidentified signator who appears as well?

As a bit of caution I have to remind you that, as soon as you begin to make even one assumption based on observations that may be flawed, you begin to distance yourself from considering all of the possibilities. This will diminish your chances of having a meaningful success but will not make your quest impossible. But, eventually it may become necessary to "open your eyes" once again in order to see what you've been missing?

John