Polish Krosno Amethyst Tall Glass Vase, Bubble Bottom

Krosno heavy Art Glass with clear smaller bubble suspended clear glass  base.  Circa 1960-1970s, pre-loved.  A collectors hand blown piece of art with classic Polish lines.  Tall with clean, clear and a cylindrical shape, this piece is just perfect, no imperfections seen.  It is a thick glass, heavy piece at 2.15 lbs.  The color is very clear in an amethyst with a bit of maroon feel to it.