Violinist

[Мира]

Dear experts , I beg the council.

Picture is not mine , so there is another picture .
It is located in the states. The popular and verifiable provenance - my grandfather was familiar with the artist in the house there are a few works of Yakovlev.
Approximate size : 22cm x 28cm .
If the " Fiddler " will be held here face control , try to buy it, but first I would like to know your impression.

A . Are there any doubts about the authorship ?
 At work, I met the initial of the name in the signature - a capital " A" , however , those figures had been earlier .

Two . Are you familiar with this work , perhaps flashed on some auctions? Or , you never know , suddenly , on Ebee ?

Thank you!