Quote:
Originally Posted by sergejnowo
The only thing not understood until the end, but is it possible to remove the yellowing under the picture?
It is interesting to hear the opinions of professional restorer, with a clear display before and after.
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Look here:
http://www.antikviteter.net/antikpra...tml?1243280506
Continued here:
http://www.antikviteter.net/antikpra...tml?1243561336
There - an example of ancient engravings bleaching solution klorin (In fact, translates as "chlorine", but probably refers to chloramine). Bleached all yellow - and under the picture, too (photo sequence of the entire process there). This is taken from a page similar to our forum art lovers of Scandinavian countries (Sweden, Norway and Denmark, were part sometime in the Kalmar union - "Tre krunur"). But there is more bias towards art than in the direction of investment. The local forum users communicate with each other in three languages, knowing each other. If you, as I understand, fluent in German, then you too will see what they say. For example, Swedish, roughly speaking, that the German words with English grammar.
But, frankly, I would not advise you to conduct most experiments with patterns Repin. I would take something simpler, such as first experiments would be conducted with his figure, which would be made on the old yellowed paper. Although if it was made in pencil or charcoal, as if nothing bad should happen - if you do not overdo with concentration.