Karl Conrad Friedrich Bauer ( 1868 - 1942 ) was a German painter. Karl Conrad Friedrich Bauer s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 101.13 USD for Bildnis "Richard Strauss" in 2005 to 6576.78 USD for Un Troyen in 2005 , based on the size and medium of the artwork.