Balthasar Anton Dunker ( 1746 - 1807 ) was a Swiss painter. Balthasar Anton Dunker s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1082.79 USD for Aus einer Süddeutschen Privatsammlung in 2004 to 9618.81 USD for Waterfall near Reichenbach. in 2008 , based on the size and medium of the artwork.