Primavera, by Sandro Filipepi Known as Botticelli, 1478 about, 15th Century, thick tempera on panel, cm 203 x 314 . Italy, Tuscany, Florence, Uffizi Gallery. Eight poplar-wood panels, of varying widths and uniform thickness of 3cm joined at the back by two firwood crosspieces. Detail. Mercurys right hand holding the caduceus, two serpents entwined around a stick, an attribute of Aesculapius and a symbol of healing. Trees and fruit trees.