“The saints Peter, Paul and Bartholomew”, by Francesco da Sangallo known as il Margotta (Francesco di Giuliano Giamberti), around 1525; pen, brown ink, watercolour and white lead on paper. From the “Gate of the Apostles”, bronze door of the Old Sacristy in the Basilica of San Lorenzo in Florence, by Donatello (Donato di Niccolò di Betto Bardi).
