Johann Friedrich Helmsdorf ( 1783 - 1852 ) was a German painter. Johann Friedrich Helmsdorf s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 649.93 USD for View into a small valley in 2004 to 1159 USD for An extensive landscape with a view of a town and figures in the foreground in 2011 , based on the size and medium of the artwo