Subject:Re: Chinese porcelain dragon dish seal base mark
Posted By: Bill H Sat, Dec 21, 2019
Your link to the Christie's image seems inoperative, but apparently significant differences arise in the painting style and some other features of your dish when compared to major auction house offerings of period dishes shown below, the first image being Qianlong-reign and the second Daoguang.
I should first state the opinion that the Qianlong mark on your dish is calligraphically in the ballpark compared to wares of imperial (guanyao) and popular (minyao) kilns of the period. However, it differs with similar Qianlong-period marks seen in my Palace Museum/Taipei catalog and the Mainland-published compendium of Chinese historical marks, wherein all green dragon-on-yellow-ground dishes shown look to have underglaze Qianlong marks written on a white grounds or tones other than yellow. Such apparent favor for white and other color bases on yellow wares also is evident in Kangxi and Yongzheng imperial wares shown in the aforementioned publications.
The painting style exhibited by your dish also seems to have an overabundance of fluffy foliage and fleshier than expected cuticles abutting the claws, when compared to the period examples (but possibly irrelevant due to the small sample size). On the other hand, your dish shows a "tamer", more even dragon's mane, like the early 19th century Daoguang dish, whereas the Qianlong beast has a windswept mane extending out in pointed clusters, which style also is found in Kangxi and Yongzheng wares.
Technically, there seems to be a difference in the pigments, as your green enamel appears to exhibit considerably more bleed into the yellow than either of the period examples.
Perhaps others can add to or clarify these observations.