I have a suspicion that this picture is very old, but still in doubt
 

Help assess the picture and identify the author. On the back of the first pictures of the signature, the inscription appears in the Georgian language.

Signed: N. Argvliani
The picture hardly old and the observed "signs of aging" is nothing if not high quality materials and probably the result of careless storage.
You do not have to worry because artistic value of the paintings, even in perfect condition - zero.

These paintings can not be old, especially very old.
In the old days did not use such colors and such a method of applying them.
If this course does not work art of the prophet.