Karl Johann Nikolaus Piepho ( 1869 - 1920 ) was a German painter. Karl Johann Nikolaus Piepho s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 316.51 USD for Auf der Insel in 2004 to 3966.37 USD for Tea Time in 2004 , based on the size and medium of the artwork.