Franz Leitgeb ( 1911 - 1997 ) was a German painter. Franz Leitgeb s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 940 USD for Portrait of a Bearded Man with Pipe in 2004 to 3200 USD for Floral still-life with butterfly and bug in 2008 , based on the size and medium of the artwork.