Who can help me identify the maker of this blue-white vase with inverted bubbles? It is signed (in Czech, Russian, Polish?), but still I am not able to trace the (name of the) maker.
The vase is 25,5 cm/10,04 inches high and 11 cm/4,33 inches wide. It is numbered/dated: 49/250, 1995. Any help or tips are welcome.