Aivazovsky?
 

I ask the opinions of experts.

Something in particular is difficult to say ...
Rather, "no" than "yes" ...
It would not hurt to clean ...
:shy:>

No, not him!

Had the experience to clean the icon of the liquid called Pronto * * many years ago finally brushed with watercolor . The only thing that comes to mind is the turpentine but not after a few successful experiments with watercolor is no longer any desire due to lack of experience . The photo did not see the drawing of the finished mast . Signature erased . Thanks for the answer of course . Apparently it is destined to please someone's sole opinion until it crumble to dust . While there is no direct sunlight . I would say that she is aging on the eyes * * .

Dear Maximuschigaev, I advise to stop experiments with household cleaners, as
this will inevitably lead to a loss of picture.
Charge these efforts a professional, he knows how ostanoait aging eyes.
The picture is not bad and would be a pity if lost.

Totally agree with you . Apparently it is waiting tube . While so happy balance. Especially when it is in the soft twilight . ( I can not see how she exhausted the time ) I myself had seen a sailor and marine species . Very true colors . It is a pity to shoot .

Minimize necessarily a colorful bed out!
(Although I would not have done)

And the picture does not collapse across and along the ...

But in general, why it collapse.

On a stretcher canvas is much more convenient, and no place has a lot more than the tube.

Restoration of this process is very complex and requires specific knowledge. I myself just can not . If you give in the work place in the Crimea to who is doing the question arises whether in respect of those whose money it really worth it. Can get expensive . Although it pleases the soul . The only thing I could do is swab on small plots myltsem with alcohol to remove the dirt go ? Here's another photo . It all crumbles . If the alcohol it does not hurt to try it during the week to clean and take his companion normal optics that used to take pictures . Why it is not at those shades and it is not so as to present it looks . It turns out the same picture arts .

I would not recommend to carry out any restoration work on their own, leave it to professionals with good recommendations.