The prices at the Bernal sale were about the same as the best Dresden.
We give some form-marks supposed to belong to Frankenthal:
| Crest of the Palatinate. | Mark of Joseph Adam Hannong. | The Crown. |
The first, the crest of the palatinate, was used from 1755 to 1761.
PH combined, sometimes found on this porcelain, marks the work of Hannong.
The crown, with the letters C. T. (Carl Theodor), indicates the late period from 1762 to 1798.