Czech Tango Glass Vase on Tripod Legs

This a small vase in exceptional condition.....not a scratch or scuff on it. It is cased in clear glass and the 'black' legs are amethyst (image four).

Also exceptional is the polished rim and unusual mould lines. These are two sets of vertical, parallel, dotted lines.....so I'm not sure they are mould lines. It is simply so much better made than most other Tango glass I have.

Height 14 cm./5.5 inches