Strada Statale Amalfitana This is the SS-163, otherwise known as the Strada Statale Amalfitana (the Amalfi State Road). It is a famously windy, busy and sometimes narrow stretch of highway that runs the entire length of the Amalfi coast.
This image is from the presentation "Questione di Famiglia - Italy, Avellino, and the Perugini Family".