http://www.infofaience.com/en/niderviller-hist

The glaze should not rub off to that extent !! Have been looking at this most of the day and it will be a learning experience !! Remember age does not mean value !! This pottery has been working since the 1700`s but has not made porcelain since 1830,, only ceramics !! So I asked myself why would a rather ordinary pottery that is still in business today command such extreme prices with absolutely none selling !! It is a typical chain reaction,,one person prices theirs at unreasonable price and someone else sees it so theirs goes up and another and so on !! They are OK little figurines but nothing is special about them !! And I looked at many of them today and none show any age on the bottom and rarely are any of them marked although they used a number of different marks over the years !! Remember there was no central heat and air two hundred years ago and I don`t care how clean you tried to be,, dust, dirt, stains would have shown on the bottom !! Even if it was rarely moved that fact is unavoidable !!
And there are many of them available !! One person has so many that she/he has them listed in many different countries and sales sites !! Why they think they will get those prices I have no idea. You can read the short history of the pottery above !!
The reason I asked about the gritty feel is because known similar figurines are being made and many are selling them as being made in the 17 and 1800`s and those have a gritty base !!
So is yours Niderviller ?? Could be,, is it that old ??My opinion is it is not !! I would not buy it !! Like I said age,, does not equal value !! For the prices they are asking you could get a nice piece of Sevres/Limoges that has a proven track record of value !!
I realize you already have this one and the style is like that of Niderviller just can`t say yes or no on it !! I can say it looks as good as the others I have seen today !!

http://www.oldandsold.com/pottery/france5.shtml

Number 14 through 30 are the marks used throughout the years at Niderviller pottery !!