A sketch by Boardman Robinson (drawn in reference to the coal strikes of 1912 in the United States and United Kingdom) depicting a miner emerging out of the earth with a pick axe and head seeking the light above. By Boardman Robinson - The Masses ( Vol. 3, No. 6 ), New York: The Masses Publishing Co., 1912-06https://library.brown.edu/cds/repository2/repoman.php?verb=render&id=1360937484387398&view=pageturner&pageno=4, Public Domain, https://commons.wikimedia.org/w/index.php?curid=75299497