This is a vintage crystal/cut glass vase with an elegant fluted top and a faceted, multi-tiered pedestal base. Design: Fluted trumpet-style top with a faceted pedestal base.
Era: Early to mid-20th century. Use: Likely a bud vase or centerpiece. Mid way is a silver spacer that unscrews top from bottom.
Not sure why it has this feature. Also slight ware at base of first part where it unscrews. 14" tall 5 1/2" base.