Tall vase shell Murano glass purple blue vintage design

Rare, very beautiful tall, modernist, designer, very elegant shell vase. Murano glassware, italian hand-blown craftsmanship, in the style of cenedese & albarelli, unsigned. Vintage circa 80s-2000s. Colorless foot, deep purple glass body with cobalt shades, varying shades depending on the light, strangled with a spiral black glass thread. Very beautiful workmanship. 30.2cm total height, approximately 11cm maximum diameter, 6.5cm diameter at the neck and base. Very good overall condition, no chips or cracks, however it has a number of superficial scratches from use, especially on one side, this remains relatively discreet overall. Interior slightly tarnished by use, also discreet. Approximately 1.200kg.