Johann Friedrich August Tischbein ( 1750 - 1812 ) was a German painter. Johann Friedrich August Tischbein s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4163.13 USD for A PORTRAIT OF A GENTLEMAN, BUST LENGTH, WEARING A PURPLE EMBROIDERED JACKET WITH A LACE COLLAR AND A WIG in 2004 to 87405.8 USD for PORTRAIT OF AMALIE VON LEVET