Florence, Museum of the Opera del Duomo (Museum of Florence Cathedral of Santa Maria del Fiore): “the silver altar of St. John's Treasure” (1367 - 1483), by Florentine masters.Detail with the central niche designed to contain the figure of the Baptist. Fifteenth-century work by Michelozzo (Michelozzo di Bartolomeo Michelozzi).Detail of two statuettes of the crowning.