In the region where the bus is pictured there is a company that has operated since 1962: "Societa Autostrada Valdostone".
Furthermore there was a comapany called "Societa della Autostrada di Venezia e Padova" which has been in business since 1928
These companies were both operating in the Venice - Padova region, where the picture was taken. I believe that it would be the "Societa Autostrada Valdostone", however that would place the picture later than 1962?
I have not found any other pictures of the bus. The enlargements of the picture that Ronny provided reduces my believe that the script is Alfa Romeo in the grill.
How did you conclude the picture was taken in the Venice-Padova region when the link and all pictures shown there point to San Vinzenco and the central Etruscan coast?
'63 2600 Touring Spider (AR 191437, the car that started the 2000/2600 International Register, reassembly in progress)
ex-'65 2600 SZ (AR 856043, now being restored in Austria)
Maintainer of a private 2600 SZ register (not the one in the Netherlands).