John Frederick Loos ( - ) is a Belgian painter. John Frederick Loos s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4025 USD for MARGARETS WIER in 2005 to 16000 USD for Servia off the Coast of Belgium with Antwerp Pilot Schooner No. 2 in the Distance in 2007 , based on the size and medium of the artwork.