This is a gorgeous vintage vase.  It has a cobalt blue crest which really stands out against the opalescent spiral optic pattern.  It is unmarked and is in wonderful condition.   I see no chips, cracks, or repairs.  It measures approximately 5.5" tall and 6.5" in diameter (at it's widest part).  I have also included a picture of what it looks like when natural light hits it.  It is simply stunning!