Siep (sybren Ridsert) Van Den Berg ( 1913 - 1998 ) was a Dutch painter. Siep (sybren Ridsert) Van Den Berg s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 148.64 USD for Naakt Henny in 2005 to 3664.12 USD for Untitled in 2007 , based on the size and medium of the artwork.