Otto Kock ( 1921 - 1999 ) was a German painter. Otto Kock s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 383.59 USD for Bunter Strauß mit Pfingstrosen in Glasvase in 2005 to 1171.3 USD for Reitweg im Grunewald mit Pärchen beim Ausritt und zahlreichen Militärs zu Pferd. in 2010 , based on the size and medium of the artwork.