Dresden porcelain figurine.?

i found a vintage porcelain figurine at a antique store for $225 dollars of a vintage lady slepping in a chair. it only has one mark on the bottom and its like an x and from the center of the x two other lines come up to each in the side makin like a x whit a u on top of each other the color of the mark is blue can any body tell me something abaut that symbol and if its at a good price thanks.