Alfred Franz Sidler ( 1905 - 1993 ) was a Swiss painter. Alfred Franz Sidler s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 257.16 USD for Ansicht einer Ortschaft an einer Seebucht in 2004 to 999.89 USD for Maternité in 2014 , based on the size and medium of the artwork.