light blue stem glasses

Set of 10 glasses, European manufacture, 1970s–1980s.
Spherical cup in mould-blown glass, stem and base in mass-coloured glass in a washed-out cornflower blue, a cold and desaturated tone unusual in serial production of the period.
The two elements (body and cup) are hot-joined with a clean junction.
 
measurements:
height 13cm
rim diameter 7cm
weight 117g