1) printed on raw clay, from the 1950

2) engraved on glaze in use from the 1962 to the 1966

3) painted on glaze in use from the 1962 to the 1966

4) printed on raw clay, from the 1962 to the 1966

5) hand painted over glaze from the 1966 to today

6) printed on raw clay, from the 1966 to today

7) printed on raw clay, from the 1966 to today