Hans Porwoll ( 1898 - 1984 ) was a painter. Hans Porwoll s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 596.97 USD for Frachter der Hamburg-Amerika Linie läuft aus dem Hamburger Hafen aus in 2004 to 1291.57 USD for Im Hamburger Hafen in 2005 , based on the size and medium of the artwork.