If that vase was not described as Fenton I would have sworn it was a bit of Welz... There is wear but it is in a very narrow ring around the edge, making the rest of the base look very clean, you really need a loupe to see it clearly. If they are a hundred or so years old they have not had a hard life.
Bohemian was my first impression too Ivo, almost like some early Welz in some respects. They don't feel like Welz when in the hand though, all in all I would not be surprised if Paul is right and they are much more modern than that.