Bohemian glass vase, Tango blue - Wilhelm Kralik / Ernst Steinwald & Co. unsigned Vase in colorless glass reinforced by a lining of opaque blue glass known as "tango glass." The base is supported by a lining of dark purple or black glass decorated with six lines extending to the neck, where they are slightly flush. Circa 1930s Height ~ 15 cm Diameter base ~ 5.3 cm Total weight ~ 0.19 kg Very good condition, some scratches, a chip at the neck, see photos. Remember to group your purchases to reduce shipping costs!