Not sure if this is of any help.
In the book, Timo Sarpaneva : a retrospective, march17-june18, 1994. Published by the American craft museum. Under the section Selected solo exhibitions in 1957 he
had a exhibition of woven Karelia interior design fabrics in Stockholm.
In the selected group exhibitions, 1955 there is an exhibition titled H-55,Finnish section, Halsingborg.
I can have a look and see if I have any more information about this subject.
Good luck in your quest,
Tim