These chairs are italian made. I do not think the caned seat is original, usually it is made of danish cord.
Concerning brand or designer, I never saw a mark on these chairs excepted for an occasionnal "made in Italy" sticker. They are not too rare. I might be wrong but I guess they are generic chairs, heavily inspired by the Super Leggera chair by Gio Ponti.
I own one myself and I love their simple, very mediteranean design. Nice find if you got them for a good price.
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