This building, located in Genoa, Italy, displays the emblems of four cities: from left to right Florence, Genoa, Milan, Venice.
It is currently an university building, but I don't know how long it has been, nor what was it used for before.
What do these cities, and not other cities, have in common? I.e. what might be the reason for picking those cities?
In particular, it stands out there's no Turin, nor Bologna.
The date, unless I'm mistaken, is 1914.
PS: I did write to Eridania to ask if they could clarify, but unfortunately they never bothered to reply, which is a pity.