Bertil Wahlberg ( 1923 - 1980 ) was a Swedish painter. Bertil Wahlberg s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 246.2 USD for Skärgårdsmiljö in 2004 to 524.4 USD for barn-och landskapsmotiv in 2005 , based on the size and medium of the artwork.