Repin? Who is the author? Signature on the reverse side

[Игорь Гурьев]

I know a man who has found this Goya (miniature , ivory , the catalog was listed as missing , but he later found out about it ) in a curiosity shop .
And then sold it to the museum a Western .
Nothing so sold for good money . Or not in a museum. But still sold.

So everything happens in life.
More precisely , can be.

However, this picture is not Repin, simply do not match the style of it. A signature - yes, remarkably similar .