Turquoise blue blown glass vase

Very beautiful blown glass vase in a pretty blue tending towards turquoise. Its shape is original with its 5 lobes reminiscent of a wave and its ribbed lower part. It is slightly stretched backwards, but is nonetheless very stable because its base is relatively heavy. It has a few air bubbles which testify to its artisanal manufacturing. It dates from the 60s or 70s. It is in good general condition, no cracks but some traces of use: slight traces of limescale inside the neck, probably cleanable with vinegar and a bottle brush, small marks and barely visible scratches. It also has two small reliefs, at the back, at the ribbed part, which could be the marks of pliers used at the time of manufacturing the vase. It measures 32 cm in height, 4.5 cm in diameter at the collar, and 10 cm in diameter at the base.