Wilhelm Ferdinand Xylander ( 1840 - 1913 ) was a Danish painter. Wilhelm Ferdinand Xylander s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 570.5 USD for Sejlskibe i et havneindløb ved nattetide.nattetide. Månen trænger gennem skydækket in 2004 to 5625 USD for Hamburg harbour under the moon in 2011 , based on the size and me