This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Hwmarx. Karl Marx From Helmolt ed History of the World New York Copied from lib utexas edu University of Texas Portrait Gallery This is copy of utexas edu html picture from the utexas edu portraits collection of the PerryCastaeda Library PCL of the University of Texas at Austin According to the description on the front page