Since 1879, each hand painted article produced by De Koninklijke Porceleyne Fles has been marked with the mark on the right. It consists of:
– A jar
– The Initials JT
– The City of Delft
Below to the left the painter’s initials are painted and on the right a year code. Using the year code list you can find out in which year your Delftware was produced. Over the years, The Porceleyne Fles has carried many trademarks, which changed with every new owner. Here you can find an overview of the trademarks used since 1653.