Berndt Helleberg ( 1920 - 2008 ) was a painter. Berndt Helleberg s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 13.71 USD for Ragnvald Knaphövde in 2006 to 181.6 USD for Two fåglar in 2009 , based on the size and medium of the artwork.