Fritz Thomas founded the Porzellanfabrik Thomas & Ens in Marktredwitz in 1904 in the German Franconian region. Already in 1908 the firm was taken over by Rosenthal. In 1960 the production in Marktredwitz was discontinued. The new plant at Kulm in Speichersdorf was opened as a replacement. It is still under the roof of the Rosenthal Group.
Clues on dating Thomas marks:
without points 1908 - 1922
2 points under the shield for 1924
2 points above the shield for 1925
1 point in the shield for 1926
3 points in the shield for 1927
2 points in the shield for 1928
1929 without points, the mark no longer shows the left shield edge
Starting from 1930 in addition to the "Thomas" in the shield "Thomas" also is above the shield.
without point for 1930
1 point at the bottom of the sign for 1931
2 points at the bottom of the sign for 1932
3 points at the bottom of the sign for 1933
changed mark with "Thomas Bavaria" in the shield from 1938