Le sculture delle porte urbiche di Milano. Uno sguardo ravvicinato

The sculptures from the city gates of Milan, before their positioning in the Museum of Ancient Art of the Sforzesco Castle, have undergone several vicessitudes, which can be identified through careful observation of their condition. The considerations emerged during the maintenance allow to describe the sculptures in all their aspects with a focus about the closer examination of the natural and human degradation. Starting from the analysis of the materials, the comparison between the different types and origins of the marbles, the observation of processing technologies with the marks of the tools used, the recognition of rework or traces of sculptural elements missing, allow to collect data on the execution characteristics useful for identifying a recurring style, while the presence of degradation phenomena attributable to human causes may suggest a path of conservation.