"This old sundial is in the Cimiez Franciscan monastery's garden. It hangs on the southern wall of the buiding. To see it you must enter the garden, which is free when it is open."
Source: www.niceazur.com/index.php/en/tour/unusual/111-sundials
The sundial provides a lot of information about "True Time and Average Time" and shows all the 12 Signs of Zodiac with the corresponding symbol and the name in French.
For more information about the sundial see waymark WM10YQ3.