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This is badly needed
In the world of porcelain, DNA, Fingerprints or something like this in the porcelain itself would solve the problem
Well its here ... Tell me what you think after you read it ...
Bubble analysis has been around for a while, like all methods of verifying authenticity it must be weighed against other methods as well. It is true though that certain types of "bubbling" is very easy to spot on modern copies, too many, too even etc. You can use it but keep it in context.
We've been working for two years with a group of scientists using very advanced next-generation Lazer analysis through Yale University and former DARPA/Homeland security guys to pull precise mineral content analysis from the unglazed paste. Right now, the results are in the 95 to 98% accuracy range in verifying late Ming pieces. Profiles are now being developed for modern pieces. Time will tell how reliable it will be in total.
A very interesting article and the concept seems fine. Laser analysis now that’s some thing new, and Peter your in the thick of it. How analysts of Asian porcelain is an aid to your homeland security I have no idea. There is also a series of YouTube vids of a system of statistic verification of porcelain presented by a Dutch expert. His idea begins using Famille rose images and breaking down the characteristics of facial designs over the centuries. The idea being that with enough data on things like hair styles, methods of conveying mouth, chin, and earlobes over the centuries you can get pretty close to actual age of the piece. These are things forgers would ever take into consideration. Thought that was a pretty interesting presentation.
The technology was heavily enhanced during the last 20 years to identify the origins of explosives and other armaments. It's now being shared and applied to the Arts, the people I am working with have done work at the British Museum in painting analysis, at Jamestown for pottery and soil analysis and a host of other things.
hi everyone, very interesting stuff here. I have read the bubble morphology paper by the two physicists from London, and think their work can be applied by the collector to a certain degree. Like peter said, the fraudsters cant fake the different sizes and distributions accurately, but the fraudsters now us wood fired kilns to get the same effects more or less that were achieved in earlier times.
I like the laser analysis idea and isn't it funny how the investigations into explosives and armaments has migrated into the ceramics identification field. What will they think of next? Right.
Kudos to what Peter said, "weighing against other methods". If you cannot find an example to compare something against with high quality images, I advise walking away or being prepared to hold onto something for a long time.
This even goes for provenance. For example, things get donated to museums all the time. Sometimes museums sell them because they are good and can generate profit, sometimes museums sell them because they are duplicates of things already in in the collection, sometimes they are copies.
This should not be discouraging, it should be more of a call to challenge! There is a lot of money to be made in this hobby, and the fakesters know that. It only takes one piece, and it could be the most obscure smallest thing that makes it correct, but we have to be able to recognize it.
It is what it is!
In my looking at the bubbles, I noticed that the bubbles get larger where it's painted, and that tells me that its the chemicals that's in the paint, cobalt, pigment etc... this paint, cobalt etc... would be very hard to duplicate now, there is no imported cobalt, so, therefore, I think it will be the porcelain`s DNA, Fingerprint that can`t be faked
I can't remember where I saw the documentary, it would take me hours to find it, but there are groups of people in China who use porcelain sales at auction to fund illegal activities (government gifts, or other things). We are talking about huge amounts of money. They will have the best artisans spend a very long time (years) perfecting pieces for very specific placement. I hate to say this, but some copies don't really have much of a difference, call it DNA if you will, from the genuine article. China can fake nearly everything - they are amazing at what they do, and that's why we love their art.
The hardest thing to fake is documented verifiable provenance with a paper-trail. It is becoming a very large part of an item's value now. Pieces should really be looked at taking everything into account.
Provenance is now the first thing I ask for. It is also a great bargaining chip. I know that if they dont have it, then no matter what the bubbles or mark says etc, the value via resale is going to be half at least. Sometimes no provenance, like for a Zhou Dynasty bronze, makes the piece worth less than 10% of what it should be - because then it can only be resold in certain places.
It is what it is!
I find provenance a strange thing when it comes to bronzes, almost like its more important than the bronze itself, and provenance can be faked even easier than a bronze, and when you consider that all older bronzes were never passed down from generation to generations but was buried in tombs, then tell me who had the right to sell these buried pieces? the government? the archeologist?
When England invaded China they took many relics, when Japan was in China they also took many relics, 95% of all Tombs have been robbed before the archeologist even gets to the new found tomb
The government says now that up to 100,000 people, gangs, farmers, professionals are robbing the tombs and it's a problem that they can`t control
I rely on the bronze itself and care less where people say it came from, paper is easier to fake then metal
A Few Things Spotted on eBay Today.
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A few Selections
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