Frans Koppelaar ( 1943 - ) is a Dutch painter. Frans Koppelaar s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1066.35 USD for Bij de stallen, Duindigt in 2004 to 1827.97 USD for Haarlemmerplein in winter, Amsterdam in 2008 , based on the size and medium of the artwork.