Mid-Century Modern Hand-Blown Art Glass Swung Vase

This is a substantial hand-blown art glass vase, likely originating from the mid-20th century. The piece features a dramatic tri-lobed or 'swung' handkerchief-style rim with deep undulations. It is constructed using a cased glass technique, appearing to have a dark amethyst or black interior layer encased in a thick milky white or opaque light grey outer layer. The base is thick and weighted, showing typical signs of a ground pontil mark, which is characteristic of higher-quality hand-blown production. Physically, the vase stands approximately 8-10 inches tall with a wide flared top narrowing into a structured pedestal base. The craftsmanship displays heavy glass manipulation common in Mid-Century Modern designs, similar to those produced by Murano makers in Italy or American companies like Viking or Blenko. There is a visible reddish-brown surface discoloration on the front, which appears to be a residue or adhesive stain rather than a defect in the glass itself. No major chips or cracks are immediately visible, though minor shelf wear on the bottom is expected given its age. The item serves as a prime example of sculptural art glass from the 1950s-1970s era.