Factory Chopin (cabinet bronze), help identify the author of bronze statuettes

[Maria Mironova]

Lord! Help identify the author and the estimated cost of the subject!
1875. St. Petersburg. Stamp Factory Chopin. Under the initials F.SH. barely visible signature of the author
 (Unless, of course, is not it seemed to me) considered (nafantazirovala a ) it recently, after reading that work at the factory Chopin signed by the authors.
In the photo closeup see caricatures letters (like) TASTE, but so unintelligible that I tormented vague doubts .
Digging up the entire Internet, found that almost the same was cast Lanceray. In Goncharova in the book "Russian art bronze nineteenth century, though with minimal differences (bezel around the barrel and angle figurines, it seemed to me) it is written, they say pair candlesticks girl and a boy. And even found an article that they are stored at the State Museum of Applied Arts.
 Lancere copied anyone who feels like plagiarism and he had, but once the thing is made in the same factory where he worked Lancere and at the same time, it is in principle possible if such an "audacity"?
And, if possible, for example, could I just think it's a signature, but in reality, just flourishes, I have not seen them until recently))))
Overall - solid puzzle, and I have no rest, night or day))))
SOS !!!!!!
The statuettes are: length 100mm, width 85mm rear, width speredi30mm, height (highest part of the figure) where some 78mm
Thanks in advance for answers and advice, where else can I look for the information!