I know Airò because he too did fotoromanzi for Grand Hotel. Unfortunately, I don't know who Zola and Verri are but I think Zola did fotoromanzi too. We should try to find out more about these two guys.
I am not sure about Zola, but I´m pretty sure that Wainer Verri did fotoromanzi for Grand Hotel too because I´ve found his name listed in a edition from 1975 featuring Laila Regazzi, Paolo Giusti and Silvia Sala! I´ll try to get hold of this issue and report back as soon as I have any news!
I plan on buying some more Grand Hotel magazines soon so I might get the one with Zola on eBay too. As for the other link: I don't use Mercado Livre, though, but maybe someone else has used this site before...?
In the try to identify him,i saw the uncut version of Baba Yaga in wich is credited Rodolfo Zola. In the movie i didn't find our moustached actor,so maybe he is not Rodolfo Zola,but Wainer Verri.. Anyway the best way to identify him,would found the fotoromanzi with them.. But this would be an help who knowss.