Aa tourist carefully focuses and captures his image of Cellini's "Perseus with the Head of Medusa". (Check his iPad !)
This lifesize bronze sculpture was cast in the 1547 for his patron the Grand Duke Cosimo ! di Medici.
It has been standing on the Loggia di Lanzi in the Pza.della Signoria in Florence since that time,
except for removal for safety during WWII, and for cleaning in the 1990's.

According to Ceilini's autobiography, (perhaps embellished somewhat), the sculpture was difficult to cast, as the day was rainy,
he wasn't feeling well, and the bronze wouldn't attain the proper consistency for pouring.
Since bronze is an alloy of copper and tin, Cellini knew he didn't have the right
proportions of tin to make the bronze flow properly, in order to fill the "lost wax" mold.
He reports that he had to go home and get all his tin pots and utensils and throw them into the mixture,
which fortunatly saved the day !