The MP-89 armchair (1970) was made with a diagonally cut Plexiglas cylinder, fishing net, and leather cushions.  Search “阿玛尼1970机芯【A+货++微mpscp1993】” from This Brazilian Modernist You Should Know About Designed Countless Classic Chairs

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The MP-89 armchair (1970) was made with a diagonally cut Plexiglas cylinder, fishing net, and leather cushions.