This is a vintage "Maze" or "Labyrinth" pressed glass vase designed by František Vízner for Sklo Union (Rudolfova Hut / Heřmanova Huť glassworks) in Czechoslovakia during the 1960s or 1970s. Design: Chunky, heavy pressed clear glass featuring a geometric, abstract raised vertical pattern that catches and refracts light. Dimensions: heights 25 cm (approx. 8 to 10 inches) with a base width of roughly 10 cm. Has a crack but hardly noticeable, see picture 7.