Takako Saito (born 1929) is a Japanese artist closely associated with Fluxus, the international collective of avant-garde artists that was active primarily in the 1960s and 1970s.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Takako_Saito

70 cm. x 70 cm’s Freedom by Takako Saito
1991 / Assemblage: Iron box containing different objects with magnet / 39 2/5″x28″x6″

Takako Saito on Artnet: http://www.artnet.com/artists/takako-saito/

More links:
https://awarewomenartists.com/en/artiste/takako-saito/
https://www.fondazionebonotto.org/en/collection/fluxus/saitotakako
https://www.fluxus-plus.de/2655.html