Ferdinand Bol (after) ( 1616 - 1680 ) was a Dutch painter. Ferdinand Bol (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 71.02 USD for Portrait of a gentleman, bust-length, in a hat in 2004 to 47000 USD for A Portrait of a Lady Holding a Fan in 2004 , based on the size and medium of the artwork.