Robert Müller ( 1920 - ) is a Swiss painter. Robert Müller s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 390.81 USD for Kutter in st√ºrmischer See vor Helgoland in 2006 to 80514.43 USD for MAQUETTE MOBILE in 2012 , based on the size and medium of the artwork.