These guys are from the Arma dei Carabineri. Normally I wouldn't have guessed that RayBans were standard issue, but then these are the Carabinieri. They get lightning flashes on their cars. en.wikipedia.org/wiki/Arma_dei_Carabinieri
Thanks to Blackfoot Scout for standing in front of this pair to allow a series of candid shots over her shoulder. By way of disclosure I need to state some cloning on this one on the far right where some tourists strayed into shot just below the SH, plus a stray white thread on his tie.
Update: Explored #130. Many thanks to everyone who has commented, fav'ed and viewed. I massively appreciate the interest and insights offered. Thanks to all!