Benes Knüpfer ( 1848 - 1910 ) was a Czech painter. Benes Knüpfer s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2237.24 USD for DOLPHINS in 2003 to 33364.59 USD for Duel of the Tritons in 2014 , based on the size and medium of the artwork.