John Walter Wolseley ( 1938 - ) is an Austrian painter. John Walter Wolseley s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 62.22 USD for Under the Microscope in 2004 to 20738.41 USD for Iron Ore Mining as a Source of Ochre Pigments in 2005 , based on the size and medium of the artwork.