Alf Lechner ( 1925 - ) is a German painter. Alf Lechner s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 75.22 USD for Geometrische Formen. in 2004 to 18322.76 USD for 16/1971. 1971 in 2005 , based on the size and medium of the artwork.