Friedrich Kaiser ( 1815 - 1890 ) was a German painter. Friedrich Kaiser s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 651.35 USD for COLLECTING HAY in 2003 to 2922.08 USD for Preußische Kavallerie auf dem Vormarsch in den Dünen in 2004 , based on the size and medium of the artwork.