Sibylle Neff ( 1929 - ) is a painter. Sibylle Neff s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 8262.41 USD for Wartende Hochzeitskutsche". 1964 in 2005 to 21860.31 USD for Böhl bei Schlatt Appenzell Innerrhoden. Frühlingslandschaft in 2012 , based on the size and medium of the artwork.