Question to experienced people

[Евгений]

Cyril Syzransky, This is interesting (for professionals).
But the cost of such expertise? It is not found.

Сообщение от Oleg Nazarov

is the isotopic analysis!

In Russia, who have made such examination (In the example cited in the article, or this remained an experiment?)

[олег назаров]

Сообщение от Eugene

And how much? Just wondering.

If urgent in "Russian" 500-1000 --

[Кирилл Сызранский]

This is about

Сообщение от Oleg Nazarov

isotopic analysis

?

[SAH]

Сообщение от Cyril Syzransky

http://artinvestment.ru/news/artnews...forgeries.html.

... Basner, who now works as a consultant of the Swedish auction house Bukowskis, said: "The number of counterfeit works of avant-garde just incredible. Perhaps they are even more than the originals. It would seem that with the new technology could break the vicious circle. But, as Basner says, "Collectors and dealers do not want us to come. They are afraid. The market will resist the new technology: too many people who are interested in the fact that the forgeries were in circulation.

[AlexanderG]

Sovershenno verno. Eto chasto ne vygodno.

Kstati, dokazat 'chto chelovek umyshlenno torguet poddel'noi zivopis'iu ochen' slozno. Advokaty poluchaiut vsio.

[Марина13]

Slava! And I do not understand why now cover the old linseed oil? "What's in it?: Confused:


If the varnish on the painting a strong solvent, thinner, he could soften the painting and even determine belila.No can still

Now podazhe there is a huge number as soaps, which are mixtures of volatile solvents do paint kamyannoy less than a year, and before that on it and still get craquelure beautiful

[vyadem]

Сообщение от Oleg Nazarov

if urgently in "Russian" 500-1000 -

sorry for the obvious question ... 500-1000 Why?

[sergejnowo]

Сообщение от Oleg Nazarov

isotopic analysis!

in search of cheap chemical analysis at the age of painting in Germany, stumbled upon the isotopic analysis.
I was advised, quite seriously, a couple of laboratories which, by their occupations unrelated to the paintings do not. I called and asked the type that they themselves take so much. I was told that as half a century, there is absolutely confidential method for isotopic analysis of white lead. Academic method name: Pb-210. This method is available and laboratories without specialization. The logic is more reliable than the analysis of oil, although the principle is the same.
Half-life of Radium-226 is 22 years.
But interestingly different.
At my surprise the phrase "Oh ..: eek:." I was told that this is nothing new in there and museums in Europe regularly use this method. I asked, but as an auctioneer?
These guys are rare, reliable method for them like the plague.: D

Another method is for specialized laboratories, where the white lead analyzed for trace impurities. Analysis is interesting for European Painting 17 - 18 centuries. Raw material in those days were caught in good dozen mines in Europe and trace each mine, unique to this mine, are known. Interestingly, the famous 20 th century forgers were aware and knew where to dig.

Paintings fake Han van Meegeren, one of the most famous rigged the 20 th century gave the result: (Polonium-210: 8.5 ± 1.4, Radium-226: 0.8 ± 0.3). A picture Gollancz 1600 - 1660 gg. give an average (Polonium-210: 0.23 ± 0.27, Radium-226: 0.40 ± 0.47)
Difference as heaven and earth, while Han van Meegeren used raw material for white with the correct mine.

theses were defended on the subject in the mid 60s
Source: 3.Keisch, B: Dating Works of Art Trough their Natural Radioactivity: Improvements and Applications. In: Science, 160, p. 413-415, 1968.

[K-Maler]

Сообщение от Art Consulting

Restoration and washing usually does not lead to a softening of the paste-like sites.

Can not wash painting with cracks. To rub the oil can be relatively fresh painting if it is "prozhuhla", then you can put the light on for some time, some paint at the same time "revive" it was under the influence of light. But the old paintings can be seen and so. This is especially seen artists, they have sensitive eyes - ask artist friends to see. Museum officials did not always see the difference. Perhaps because it is fresh painting seen less frequently.