The central emblem is the "Ouroboros", a symbol of cyclical time here represented as a drake biting its own tail, while at the inside there are some figures: Hermes on the left, a solar divinity in the middle and Charity on the right. The sun and the moon are overhanging the whole scene. The theme here celebrated is a reflection on Time, on how quickly it elapses and on the opportuneness to seize the right moment for each human activity.