Leonardo Da Vinci learned from Verrocchio different concepts of Carpentry, Mechanics, Engineering and Architecture. Leonardo's father called Piero sent his son to the most famous shop in Florence, the one that Verrocchio. And from 1469 to 1470 and here the young man began to practice drawing as well as painting with fellow shopkeepers like Botticelli, Perugino, Domenico Ghirlandaio and Lorenzo di Credi. In 1471 he signed a tile 20x20 that represents the profile of the Archangel Gabriel: we can say this because the year (1471) and numbers 75 and 52 (probably day and month) in addition to the acronym LDV are present on the tile and represent the first work signed and dated by the great Italian maestro. These notions learned in the workshop of Verrocchio will then serve Leonardo in his construction and design projects that still leave us stunned.
