Defining authenticity
 

Would like to hear about this film, like Germasheva or not. Oil on canvas. Signed Germashev. 52smH36sm
Thanks in advance

Lex, technological expertise necessary to carry out restoration was ..?

In those pictures, that is in the base of sales on this site, the signature Latin, but in your - Cyrillic. I am no expert on this artist, but this time you should pay attention.
http://artinvestment.ru/auctions/856/records.html

The owner assures us that the restoration was not, but the canvas is covered with varnish.

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I looked in various databases, the signature of the Cyrillic alphabet is also found. Thanks for the advice.

Germashev only after the final move to France in the 20's. began to sign his paintings in Latin letters. Prior to this all-in Cyrillic.