Walther Koch ( 1875 - 1915 ) was a painter. Walther Koch s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 425 USD for BUNDNERSICHE INDUSTRIE UND GEWERBEAUSSTELLUNG in 2005 to 3400 USD for DAVOS. 1908 in 2009 , based on the size and medium of the artwork.