Willy Tiedjen ( 1881 - 1950 ) was a German painter. Willy Tiedjen s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 283.45 USD for Liegender Collie in 2004 to 1133.79 USD for Schafherde in weiter Landschaft in 2004 , based on the size and medium of the artwork.