Some history:
Kupittaan Savi was in business from 1921-1969, and also made tiles, vases etc. home goods.
They are known for their humorous figurines, such as "Matti ja Maija"
In 1950s it was very typical of the company to mark their pieces with a marker in the bottom, with text "Made in Finland", as well as the initials of the artist- just like this one.
Later in 1950's and during the 1960's, Kupittaan Savi started using a sticker for their items (round sticker indicating Piispa Henrik.)
Yes, you have value in that collection; congrats !!
Don.......
PS: Säkylä is a municipality of Finland. It is located in the province of Western Finland and is part of the Satakunta region.