Karl Louis Constantin Meunier ( 1864 - 1894 ) was a Brazilian painter. Karl Louis Constantin Meunier s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 59.99 USD for Portraits of miners and women in 2011 to 6571.45 USD for FORGERON OR MARTELEUR in 2017 , based on the size and medium of the artwork.