I like the picture.
It is likely that the historical and artistic value is not high, but for decorative purposes, in most times.
But the price ... question is quite complicated.
Erase the inscription of the back of and sell as H /X, will probably get many times more.: D

There is a master Andrea Piccinelli, but I think this is a great insolence ... : D

is not specifically said.:)
Do not even dream, SergeiSK, you have the age pattern described.
Go on you to compare the work of Andrea PICCINELLI IL BRESCIANINO (c.1485-1525)

There is a painter Angelo di Puchchinelli (appended name: Angelo di Puccinello; Angiolo Puccinelli; Puccinelli Angelo da Lucca, as well as Angelo "di" Puccinello Puccinelli , for short - Puccio Puccinelli). He specialized in family portraits, urban landscapes. Worked in Pisa, Siena, Lucca (Italy, 14-15 cc.). This may be a good copy with the original.

nts17, your work is a copy of Sebastiano del Piombo (1485-1547).
And in this girl artist probably doted.
For a couple of minutes found on the Internet:

nts17, What do you say, what better forum? : rolleyes:

But a copy - perhaps the first half - middle of 19 century.

copy of Sebastiano del Piombo (1485-1547).
http://www.sai.msu.su/cjackson/piombo/index.html
La Fornarina
1512
Panel
Galleria degli Uffizi, Florence.
Fornarina (Italian: La Fornarina, «Bulochnitsa") - semi-legendary love of models and Raphael, whose real name was seen as Margherita Luki, and the nickname was due to the profession of her father. Portrait Fornariny brush Raphael (1518-1519)
Who is it just not ... write?
http://nearyou.ru/rafael/118forna1.html
Not very serious, but curious RESOURCES
http://www.liveinternet.ru/users/2010239/post69842700/
And where you can see inete Antonio Puccinelli for comparison with the proposed here "Fornarinoy??

vit, Antonio PUCCINELLI (1822-1897), with artprice.

nts17, Yesterday I was on the occasion of the Picture Gallery of Old Masters in Berlin. There I saw a picture of Sebastiano del Piombo, Number 4 of my message. Then looking on the internet found the analogue of your work. In this lively work Sebastiano del Piombo as close to his teacher, Raphael (which hung in the adjoining room) as the heavens and the earth. Rummaging in the Internet found information that the work attributed to Sebastiano del Piombo, including to and from for a model. And for me, if he was a pupil of Raphael, not he. In general, dark forest.
Believe me, your research in order to sell expensive little of lead.
Old Masters, is an information swamp without a bottom.
The lion's share of all the works of old masters are not signed.
The lion's share biographical information sucked out of the finger.
Ownership of an artist to a particular school, usually assumed by art critics on the basis of similarities in technology, the plot of models, etc. analysis of birth and death dates and places of residence.
On one of Rubens, which is considered a real Rubens, a dozen works, which are not inferior quality but are attributed to the maestro. Why so, long story. Thus Rubens himself would cost $ 3,000,000 and attributed only $ 30,000, and all of the old and all in all. This Sebastiano del Piombo far from Rubens, and you only have a copy of the 19 th century.