Well,, at least you know the pattern name “Vivi” or if not a name then a design line and a year !! I had a very knowledgable person on my other forum to look and he didn`t find anything either !! But that response raises more questions than it answers !! There is a member here who is also a member on antique-shop.com who is a porcelain expert !! His name is Chris Marshall and he owns www.porcelainmarksandmore.com !! Let me ask him to take a look and see if he has any additional info !!