Friedrich Perlberg ( 1848 - 1921 ) was a German painter. Friedrich Perlberg s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 990.26 USD for Der Christbaum-Markt in 2008 to 22082.12 USD for Figures and a donkey above Beirut in 2012 , based on the size and medium of the artwork.