It should include the history of the piece, images, comparisons, exact measurements, and tell a story.Click here to see an example of a properly done appraisal.Be also aware that not all types of clay used in the potting contain sufficient amounts of the properties needed to obtain a valid TL reading. Familiarize yourself with the different styles of each of the Ming and Qing emperors.Sufficient amounts of quartz, and feldspar must be present. Soon you will be able to glance at a piece and immediately recognize, for example, the difference between the Xuande and Wanli styles of the Ming dynasty.Collect catalogues from the major auction houses like Sotheby's and Christie's.They have quality photos that will aid in the identification of a style or period.With his reputation, he should have immediately recognized the mark and style and used some creativity in his appraisal.An appraisal should go into as much detail as possible to accompany any fine piece of art on it's journey.
Quite often a fake is passed from hand to hand unknowingly, often accompanied by the famous Certificate of Authenticity. There is for appraisal and many people offer appraisal services.
These were made to deceive, but in reverence (honor) of an earlier style or period.
For example, some pieces from the later Ming reigns bare the earlier Xuande mark.
The same applies to the later Qing dynasty, with the most common copied marks being that of the earlier Kangxi and Qianlong reigns.
These pieces, though not of the period, are still arly trade with China could produce the materials, but not the methods of the Chinese potter, some of which were highly guarded secrets.