I don't know if this is your Kirsti label, but I found many references to Kirsti Fashions, but only in 1970-1971 newspapers. The references pretty much all said the same thing: "...Kirsti Fashions, designed and sold in the United States, but made in Finland from Scandinavian fabrics..." Perhaps if you show the garment to which the label is attached we can determine if the item is likely from that narrow time period.