Score web

[DrOlga]

Dear Sirs

Please help identify and evaluate the author's picture.

1. Author - unknown
2. Material and manufacturing technology - oil on canvas.
3. Size 68,5 x 90 cm
4. Established -???.
     But here it is interesting that two different art-made creation time of the divergence in 70 years ...
5. Signatures, inscriptions, stamps, birochki - no
     One of the collectors believed that the canvas was whitewashed after nesolko decades after the creation of paintings
6. Condition - slight attrition in the lower right corner.
7. Expert opinion - no
8. Origin of the picture - probably 70 years in the family ... It seems someone has found in the basement of his home ...

Examination is not conducted, the owner wants to see an independent, preliminary evaluation (primarily fiction).
He turned to the world famous collector in the city (he advised to find a good seascape-expert) to art and to the largest art museum (the second one, from the words of the owner of "scary eyes lit up and he strongly suggested to buy now at once!")

I would be grateful for your expert help.
Thank you.