Study Kustodiev??
 

Dear experts, help Kustodiev or not?
And what possible score?
Good condition, watercolor on paper on cardboard, size 25 * 35, there is an inscription on the back.
Thanks for any opinion.

Not Kustodiev
 

Kustodiev not unique.

Why? ....
because he did not know how to write ....)))

Etude is excellent, but in 1912, Kustodiev in that style does not seem to write.

Kustodiev - bathing in 1912.
I think there is something in common?

And I think that is more common in paintings from the museum's collection in Kostroma.

In the Russian Museum to take the examination ...

but it is not Kustodiev.

You'll see ..

Signature explicitly left.

The signature can be anything you like.

Written badly, certainly a great master was doing.

Maybe, Kustodiev.

Compare the written greens or the sky ...
LRA does not Kustodiev

Exposed to discuss the work done in watercolor . And the more this study . Works shown for comparison - oil paintings . It's different techniques and how can they be compared? The fact that you can pass oil is not always possible to display the watercolors. In any case, the work is not a self-taught amateur and deserves attention.
It is not that the inscription is written back Kustodiev . Definitely, the one who signed it, clearly knew that this study was done in Pavlovsk , Kostroma province . The error is that it does not study for " bathing " ( painting " Bathing ( Swimming ), established in 1921 ) . Most likely, this sketch for " Pavlov mill ," but from a different angle . Although oil sketch from the museum in Kostroma was established in 1905. And then the problem with the date 1912. But just as it is here criticized signature Kustodiev , maybe she was given the one who signed the painting back. And the sketch is named incorrectly , and the date is invalid.