These little architectonic devices are found on buildings in and around Florence. They began being added to buildings early in the 16th century, as prosperous Florentine merchants with vineyard holdings in the countryside began to incorporate “little windows of wine” into the architecture of their city palazzo. The wine doors are located on the ground floor of the buildings and often in correspondence to cellars. In this way merchants could easily make wine available to neighbors and later sell directly or offer to those in need. The size of the doors are for a 'fiasco', the old styled glass containers (which you can still find) for wine which hold 1 3/4 liters and are protected with interwoven straw.