Drawing pictures by Boris Grigoriev, "Portrait of a Girl." Examination of authenticity.
 

Welcome colleagues. The other day in the community of Facebook , I asked for help in determining the authenticity of the picture Grigorieva. Administrator rehash my post to the forum. I am grateful to all who responded.
  Finally, I took photos of the drawing. True poor quality. Due podstekolya of intense reflection .
 The picture belongs to a respectable lady, who are confident in its authenticity. Let me remind you , the picture belonged to her late husband and the ladies in the house about the seventies . To reproduce a copy not like. As for the fake ( up) then in those days Grigoriev has not been as a commercial artist , and no point in copying was not. The more difficult to copy the image . And why?
  However, the Russian Museum "Girl " set (such as) in 2011. So where's the same script?
  I would be grateful to all those who respond.

And you can picture without glass.
Signature hard to see, but there nomerochki!
When you remove the glass, neatly look greasy or not.
Can it print?,

The fact that you show just like on the picture , not even on a lithograph , so the " one to one ". Look at the edges - the tone yellow background is flat, as is the case with some printing the image with the tone of the background. There are at the edge of space with white spots - it stripped the emulsion ...

But the signature is totally natural.
Initially seen increasing pressure, then sagging, and figures - 6287.
The first two increasing pressure, and the last two - a light touch.
Such reliability even modern superpikseli not reproduce.

A picture and could be signed ...
the donation or sale.

Good all the time.
Colleagues to sign and stamp numbers guessed Russian Museum or imitation.
What does that mean?
And if the same, one to one 'self image, as well as the signature with all other information elements, it is clear that this is printed.
Your opinion?

But again, I repeat, the signature natural.
And the numbers - 6287 - just drawn by hand.

The original of the Russian Museum.
 
You lithographic prints .
See figure breaks - a land of the printing area , then unsealed box printed sheet. Signature B.Grigoreva , numbers , print the Russian Museum - the original , but are also made lithographically .

Lithographic print - print is made ​​from a drawing applied to the lithographic stone . Each print - the original. Is applied to a special, slightly fluffy paper to better was taken , but it may not be the ideal background edges , even toned , more paper itself can be tinted ... but there will be no white edges.

A lithographic prints of value?