Johann Conrad Zeller ( 1807 - 1856 ) was a Swiss painter. Johann Conrad Zeller s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 991.33 USD for Gegenstücke: Porträts eines jungen Ehepaares in 2006 to 5066.12 USD for Hochalpiner Bergsee mit Staffage in 2013 , based on the size and medium of the artwork.