[K-Maler]

[QUOTE="khmelev;3378811"]who, when and why have you made changes in Museum work. And as all this was possible from the point of view of Museum standards hraneniya@

Yes, I too have noticed it.
In this regard, I remembered that I have recently read somewhere (can't remember what the resource), in France in the environment restorers formed the sentence "not to restore, but only to preserve or clean from dirt. I.e. - do not restore the lost fragments. "Otherwise, we don't know what to say." It was about that after any "recovery" fragment significantly affected the surrounding layers and the product is changed, it becomes almost a remake. Together with the old varnish removed final glazes, etc.