 In some pieces, such as the front of a large charger with a foliate rim in the Çinili Koşk Museum in Istanbul, the decoration used only Ottoman "Rumi" designs.During the first two decades of the 16th century there was a gradual shift in style with the introduction of a brighter blue, more use of a white background and a greater use of floral motifs.Dating from this period are four mosque lamps from the mausoleum of Sultan Bayezid II in Istanbul which was constructed in 1512–13.