Birger Johannes Kaipiainen (1 July 1915 – 18 July 1988) was an Finnish ceramist and designer. He is one of the most well-known ceramic artists in Finland. Kaipiainen graduated from the Central School of Arts and Crafts of Helsinki. After that he went to work for Finnish ceramics company Arabia for over fifty years. I discovered that some of his designs are available on eBay and also here. You can learn more about the artist here.
Images from www.1stbids.com ↓