Chinese potters have a long tradition of borrowing design and decorative features from earlier wares. Whilst ceramics with features thus borrowed might sometimes pose problems of provenance, they would not generally be regarded as either reproductions or fakes. However, fakes and reproductions have also been made at many times during the long history of Chinese ceramics and continue to be made today in ever-increasing numbers.
- Reproductions of Song dynasty Longquan celadon wares were made at Jingdezhen in the early 18th century, but outright fakes were also made using special clay that were artificially aged by boiling in meat broth, refiring and storage in sewers. Père d'Entrecolles records that by this means the wares could be passed off as being hundreds of years old.
- In the late 19th century, fakes of Kangxi period famille noire wares were made that were convincing enough to deceive the experts of the day. Many such pieces may still be seen in museums today, as may pieces of genuine Kangxi porcelain decorated in the late nineteenth century with famille noire enamels. A body of modern expert opinion holds that porcelain decorated with famille noire enamels was not made at all during the Kangxi period, though this view is disputed.
- A fashion for Kangxi period (1662 to 1722) blue and white wares grew to large proportions in Europe during the later years of the 19th century and triggered the production at Jingdezhen of large quantities of porcelain wares that strike a resemblance to ceramics of earlier periods. Such blue and white wares were not fakes or even convincing reproductions, even though some pieces carried four-character Kangxi reign-marks that continue to cause confusion to this day. Kangxi reign-marks in the form shown in the illustration occur only on wares made towards the end of the 19th century or later, without exception.
Authentication
The most widely known test is the thermoluminescence test, or TL test, which is used on some types of ceramic to estimate, roughly, the date of last firing. The TL test is carried out on small samples of porcelain drilled or cut from the body of a piece, which can be risky and disfiguring. For this reason, the test is rarely used for dating finely potted, high-fired ceramics. TL testing cannot be used at all on some types of porcelain items, particularly high-fired porcelain.
