Armand Jean Baptiste Guillaumin (attributed To) ( 1841 - 1927 ) was a French painter. Armand Jean Baptiste Guillaumin (attributed To) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 100 USD for BOY AT HIS EASEL in 2006 to 2000 USD for Park Study in 2015 , based on the size and medium of the artwork.