This is a small Kosta Boda of Sweden mouth-blown Rainbow vase, designed by Bertil Vallien originally for Afors, the design dating from the 1980s. 

The vase is in excellent condition for its age.  It shows age related wear and tear to the base consistent with some 40 years of use.  

The vase is blown in clear glass cased with white glass producing a frosted effect, and with a streak of polychrome enamel wound around simulating the eponymous rainbow.  It measures 3.5 cm (1.4 inches) in diameter at the bowl rim and is 4.5 cm (1.8 inches) in diameter at its widest point. It measures 9 cm (3.6 inches) in height. On the underside of the base within the polished out pontil mark are etched the words "Boda B Vallien 48383".   There are no chips, cracks, significant scratches or any obvious evidence of restoration.  

It weighs in at 70 g. (~ 2 1/2 oz.).  

Quote item: 6961