The Royal Delft earthenware factory “De Porceleyne Fles anno 1953” is the leading manufacturer of authentic Delft Blue ornamental…The Royal Delft earthenware factory “De Porceleyne Fles anno 1953” is the leading manufacturer of authentic Delft Blue ornamental earthenware and modern earthenware. Royal Delft is not only active as a knowledge centre for ceramics but also receives over 140,000 visitors annually from all over the world. Royal Delft has made different modern collections with designers and also produces the Delft Blue collection created by Marcel Wanders.