Those were my first thoughts too. My only concern, is the lower area nearer the base on the Riihimaki vases I've seen, are clear and I'm uncertain if your vase is cobalt. I am not too sure

. I can only share with you that I too have a similar vase, although the design and colour is different. referred as a Scandinavian baluster vase. Probably around the 60's. I'm sure Ross or other GMB members will be able to shed some new light on yours and probably mine,

once you have posted improved images. Unable though to find your particular design during my search, however, here is some pictures of what I believe to be a cobalt vase, that I have had for a good number of years now. Sorry I can't be of any more help.
