C Rieger ( 1900 - ) is a painter. C Rieger s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 226.81 USD for Gebirgssee mit Angler im Boot in 2007 to 1087.65 USD for Mondnacht am Ossiachersee in 2009 , based on the size and medium of the artwork.