Urs Lüthi ( 1947 - ) is a German painter. Urs Lüthi s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 5072.71 USD for Sign of Love in 2003 to 14652.01 USD for ONE IS A LONELY NUMBER, THE SECOND IS THE BETTER ONE, THREE IS TO GO ON WITH in 2004 , based on the size and medium of the artwork.