The Tenreiro works have been highly valued in the market. A Chair with Three Feet, for instance, can be found for 65.000 reais (US$30,000, 24,000 euros) in specialized shops. With luck, it is possible to buy one of them for a much lower price in auctions. Two months ago one of those chairs were sold for 35.000 in an auction.
Remarks about the translation
Peças = pieces But I think it is strange to say "The Tenreiro pieces" !
Maybe "The Tenreiro works", could be or The Tenreiro furniture ?