Mstislav Dobuzhinsky Valerianovich (1875-1957)?

[Romario]

Stylistic comparison here is the secondary thing.
A proven provenance (collection, exhibitions, etc.) are experts in timing graph and TG under such work will not subscribe - it's my personal experience.
This seems rock solid provenance. If there is a sale graphics Dobuzhinsky from this collection auctions and collectors, there must be feedback, at least - sales history.
The author of the post I understand he wants us to get an answer on the technical execution of the work. I would say not excluded.
Study your subject with provenance - is the key to success with this schedule.

[Romario]

If You, for example, the expert on the chart L. A. Torstensen from THG will bring graphics Repin or Petrov-Vodkin, without concrete provenance she doesn't sign the paper. Previously, it was easier. This I mean that You clearly understand the current trends in the examination schedules.