Help identify the author
 

Please help identify avtora.Akvarel 1928, 12х20 sm.V the lower right corner is the signature.

privatis70, Nicholas Kupreyanov?
That seems to be in the 28 th he was in the Crimea. On the fourth exhibition of paintings of contemporary Russian artists.
It was opened in 1928 in Feodosia, in the State Gallery Aivazovsky and Archaeological Museum.

privatis70,
Signed in this work is not similar to the specimen signatures of NN Kupreyanova.
I would suggest authorship Nivinsky II even Chernysheva NM But judging by the data label artists, they will be "far-fetched" to this work.