So here are details and auction values.
(1) The grisaille and rust red 13" plate. This is a completely captivating plate with some of the best grisaille decoration I've seen in a long time. The grisaille is the black Chinese ink, all hand drawn, on the unglazed porcelain and then heightened with rust red (probably over the glaze). It depicts a lotus pond with a large dragon-like fish lurking under the ripples, leaves and stylized blossoms of the lotus.
It is old, but not as old as the marks suggest. Reading the mark on the back in columns from top to bottom, starting with the right hand column, the characters are:
or "Da Qing Qian-long Nian Zhi" which translates as "made in the reign of Emperor Qianlong of the great Qing dynasty". The Qianlong period is 1736 -95.
However, it is almost certainly Guangxu Period (1875-1908) as almost all porcelain with these marks tends to be.
Having said that, it is an extremely desirable plate and would find a ready market, particularly the Chinese market, which is hot right now. The Chinese have suddenly become prosperous enough to be buying all their decorative arts back again and are in something of a feeding frenzy for these better quality pieces.
I would say this would sell for $1500 - 3500 at auction.
(2) Multicolored vase 10" This is an example of fencai or famille rose decoration on a turquoise ground. A leaf pattern probably terminating in flower blossoms. What a shame I can't see the rest of this piece! Very tantalizing! However I can see enough of it to be reasonably sure of what it is. The mark on the base is a square seal Qianlong mark. It is another way of writing 大清乾隆年制 or "Da Qing Qian-long Nian Zhi" for the emperor Qianlong.
Again, these are apocryphal marks (they did not have some of these pigments available to them in the 1700s). However, like the plate, it was made in the late 1800s and would still have a value.
$500 - 800 at auction.
(3) Pair of foo lions or qilin rectangular Chinese seals
These are made of soapstone and very well carved. Especially the shadow or 'secret carving' on the sides which makes them much more desirable. Probably mid to late 1800s in date. A matching pair is also more valuable.
Estimate at auction $1000 - 1500.
(4) Small two character foo-dog Chinese seal.
Again about the same period as (3), also expertly carved soapstone.
Estimate at auction $150 - 300.
(5) Rice grain Ling lung pattern tea bowl 5" diameter
One of the common names for this see-through pattern is "rice grain" which is appropriate in that the little apertures do look like grains of rice but generally this then leads to the erroneous explanation that they were made by inserting rice grains into the wall of the pot which then burnt away in the kiln leaving the 'windows'. Actually the windows were each painstakingly cut by hand when the clay was leather-hard. When the pot is then dipped in glaze prior to firing the glaze bridges over the holes creating the translucent pane. The term ling lung applies to any design where the body of the vessel is pierced or cut out, whether the glaze bridges over or not. So you can take your pick: 'rice grain' pattern or ling lung.
I can't see much of the decoration but the lappet band of leaves arond the footring suggest a simple but well handpainted underglaze blue and white design, typical of Kangxi era. However the blue has a little too much violet in it to be of the period, which makes it late 1800s again, possibly early 1900s.
The four character mark is a Kangxi reign mark 康熙年製 Kangxi nian zhi or "Made in the time of Emperor Kangxi" (1622- 1722) -but apocryphal.
These bowls are not particularly rare and sell for $150 - 300 at auction.
I strongly recommend if you want to dispose of these items and get the best possible margin out of them, to sell them through one of the top auction houses such as Bonhams or Christies who would understand what you have and have an international clientèle of potential bidders who also understand.
If you take them to your local or provincial antique auction rooms you will NOT get these values as the number of potential bidders who knew what they were would be extremely small or non-existent.
I do hope this helps and I wish you and your uncle all the best under the circumstances.
Please let me know if I can be of any further assistance,
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