Josef Riedel TWO FEMALE DANCERS - opal Company Josef Riedel, Polubný, after 1930, height 21,8 cm. CLOCK - blue clear glass Blue clear glass, company Josef Riedel Polubný after 1930, height 16,5 cm. CANDLEHOLDER WITH BOWL - green uranium + crystal - mat Around 1935, company Josef Riedel Polubný, height 35 cm.