Although it bears a resemblance to a Kralik decor, I do not believe this is a Kralik piece. The piece does not seem quite right. Although I think it is older than the piece in the link, I am not sure who it is.... I would likely lean towards a more contemporary piece, even though the bottom appears to show some wear....
The Kralik pieces have a much more iridescent surface treatment, and the primary color of the body, combined with the color of
the blue are not quite right. Additionally, I could not find any examples of the decor with a line pattern such as this.....
I have attached a couple of variations of the Kralik decor for comparison.....
Craig