Hans Koetsier ( 1930 - 1991 ) was a Dutch painter. Hans Koetsier s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1747.87 USD for De wiebelaar in 2007 to 2272.41 USD for YELLOW/ BLUE/ DIAGONAL/ FIVE in 2011 , based on the size and medium of the artwork.