Holmegaard Large round blue Carnaby vase - Possible test piece

Holmegaard Carnaby, large round blue vase. This is a possible test piece. We haven't seen this size and shape before. Height 22.6 cm., width 22.0 cm. There is a born with error in the glass at the top, please see close-up picture. Otherwise perfect condtion with no chips/cracks/repairs.