João Alves De Sá ( 1878 - 1972 ) was a Portuguese painter. João Alves De Sá s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 145.18 USD for Trecho rural com figuras in 2013 to 935.25 USD for Lavadeiras in 2015 , based on the size and medium of the artwork.