Charles Clos Olsommer ( 1883 - 1966 ) was a Swiss painter. Charles Clos Olsommer s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1189.26 USD for Pensée profonde in 2004 to 23303.99 USD for VALAISANNE in 2017 , based on the size and medium of the artwork.