Otto Schulz Stradtmann ( 1892 - 1960 ) was a German painter. Otto Schulz Stradtmann s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 413.5 USD for Sommerliche Landschaft mit Kirchdorf in 2005 to 1500 USD for Summer Landscape in 2013 , based on the size and medium of the artwork.