Quel "mezzo pollice" di materia

This chapter includes a reflection on the role of architectural surfaces in monuments and ancient contexts. In attempt to trace the evolution of the concept of restoration until at present, the contribution recalls the thought of John Ruskin and Alois Riegl, who pointed out the value of authenticity and underscored the role of surfaces in the perception of historical architecture, contesting the destructive restoration carried out in many cities.