Wolfgang Adam Töpffer ( 1766 - 1847 ) was a Swiss painter. Wolfgang Adam Töpffer s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1945.68 USD for Le bonimenteur in 2004 to a remarkable record 890648.19 USD for La Promenade de la Treille √† Gen√®ve in 2007 , based on the size and medium of the artwork.