Ha! Thanks rosie, interesting, in deed ! :hiclp:
This very much enhances my theory that P.Kallioinen may have sold his designs but kept the rights himself. So he could sell them further. It seems, as well as Viking, this design may have been produced in Italy and Denmark too, not to mention at least LasiSepät but probably some other Finnish factory too.
Oh, and before that ebay ad disappears: the picture is of a 16,5cm high vase in the Metsä design, dark brown and with a rectangular "Viking Hand made USA" sticker.
I have seen clear ones in that particular shape, also one with a LasiSepät sticker that had the upper part in green, lower clear.